Hot Fire Engine Test for the Artemis Moon Rocket

20 seconds and counting t minus 15 seconds guidance is internal 12 11 10 9 ignition sequence start good afternoon and welcome to nasa's stennis space center in mississippi we are bringing you live coverage as artemis fires up for today's green run test a major milestone on america's mission to land the first woman and the next man on the moon with the artemis program good evening i'm lee d'angelo and just a little over a mile behind me is the historic b test complex where nasa tested rocket stages for the mighty saturn v rocket and the space shuttle today in just about 30 minutes we will test the core stage of our new space launch system rocket also known as the sls what you see behind me mounted into the b2 test stand is the most powerful core stage in the world this sls rocket is set to make its first flight from nasa's kennedy space center later this year on the artemis 1 mission which will send an uncrewed orion spacecraft beyond the moon and back to earth we're going to learn a lot more about artemis sls the core stage and today's test which we call the green run hot fire we'll also be talking with nasa administrator jim bridenstine hearing from some of those who have made this all happen and getting a unique perspective from someone who knows how it feels to ride a rocket into space astronaut tracy caldwell dyson we also want to hear from you and for that we have apollonia acker standing by to help you connect on social media apollonia hi i'm apollonia acker i'm a social media coordinator with the communications teams here at stennis space center and today i'm bringing your comments live to nasa tv and we're glad to have you following along on all of our social media platforms we also invite you to follow us at nasa artemis on twitter and we are live on facebook instagram linkedin beta tv dailymotion and twitch we're going to be sharing some of your posts so submit your questions and your posts using ask nasa also we've been asking you what would you take on a trip to the moon in celebration of today's hot fire test and you've submitted your moon kits using nasa moon kit we're going to be tracking your reaction online and i'm just excited to see this in person back to you lee thanks so much apollonia and i'm so glad we get to share this event online we might normally have hundreds of folks on hand here to see this in person but of course we're following covet protocols for social distancing those of us who are here are looking forward to some fire and smoke and a lot of noise i've got alex cagnola here with me he's a core stage engineer who can tell us about the test alex thank you so much for joining us absolutely thank you for having me i want to start with the basics what is the core stage how does it fit into sls well the core stage is really the powerhouse of our entire space launch system the core stage has two propellant tanks one of liquid hydrogen and liquid oxygen four rs-25 engines more than 18 miles of cables all of our electronics avionics boxes everything we consider the brains of the rocket and of course all the plumbing that goes into feeding our fuel to our four r's 25 engines sounds pretty big yeah it's very big you know our core stage is 212 feet long um you know the most powerful core stage ever built so we're super excited to see it be tested today so we're testing today we're not showing this isn't a demonstration what does a successful test look like right and that's very important to remember no we'll be testing the rocket we're still you know learning things about our rocket as we as we further test so you know you we might hear some test conductor audio interrupt our talk and we'll be relaying that message to everybody um you know we might fire a few minutes before a few minutes after our scandal time um you know we're really looking to get some engineering data once we do ignite all four engines um and that may include moving the engines a little bit or throttling up or throttling down you know we're gonna be testing everything we can to get all the data we need you're the expert i'm glad you're here with us i'm going to have a lot of questions for you throughout the show so thank you again and we're getting set to chat with nasa administrator jim bridenstine about the artemis program but first let's hear this message from stennis director rick gilbrecht hello i'm rick gilbert director of stennis space center and i wanted to welcome you to today's green run i'm here at the base of the b2 test stand where you can see the space launch system core stage installed in the stand that very stage will roar to life today producing over 2 million pounds of thrust for what we hope to be a 500 second full duration hot fire the sls was designed at marshall space flight center was assembled just down the road at the michoud assembly facility by boeing is powered by four rocketdyne rs25 engines and today we will do our part to verify it for flight i'm always humbled and feel blessed to lead such a talented stennis workforce and also to be associated with all the talented folks in the sls program i'm proud of them and you should be too the men and women of nasa boeing and aerojet rocketdyne have worked to make this green run a reality they've overcome many many challenges especially this year with covid with a busy hurricane season and a lot of technical issues that they've all overcome and persevered to make today possible personally for me this will be the highlight of my 29 year nasa career i became hooked on nasa at the ripe old age of seven when neil armstrong stepped on the moon for the first time in 1969 well guess what we're going to make history again today and i'm glad you're here to share it with me welcome to the artemis generation we are go for green run we've shown you a little bit about what we're doing today but now let's talk about why joining us for that is nasa administrator jim bridenstine jim welcome to mississippi well thank you lee it's great to be here i want to start with the overall picture talk to me about the artemis program well we're going to the moon uh this time we're doing it unlike we've ever done before we're going with commercial partners we're going with international partners we're going to learn how to live and work on another world for long periods of time using the resources of the other world we're going to use the resources of the moon to live and work with a purpose because ultimately we want to go to mars so we're going to build the capacity to live and work on another world so that we can go to mars and the reason we have to do that mars and earth are aligned on the same side of the sun once every 26 months so when you go to mars once you're there it takes about nine months to get there once you're there you have to be willing to stay as it orbits the sun until earth and mars are aligned again the moon is always with the earth wherever we are around the sun so it's it's the perfect proving ground and of course there's tons of science we can get from the moon we can get a lot of information of the early solar system because of the subatomic charged particles that have been coming from the sun for billions of years and impacting the moon that we can't get from here on earth because we have a magnetosphere that protects the earth and an active geology and an active atmosphere in the hydrosphere so so the moon is a lot about science and data it's about the early solar system it's also about astrophysics looking deeper into space than ever before because the moon gives us an opportunity to to really to have this very quiet area from an electromagnetic spectrum perspective very quiet area on the far side of the moon where we can look way out into deep space and in fact look back into time if you can imagine that so we're going to the moon sustainably we're going for science discovery exploration but we're also going as a proving ground so that we can go to mars it sounds like you're excited about this all the time not just today but let's bring it back to earth actually a little bit closer just a mile away talk to me about sls and how unique this is so the sls rocket is the most powerful rocket ever built in the history of humanity the core stage has far uh four rs 25 engines these are very similar to the space shuttle main engines um and of course we're going to light this rocket today for a period of eight minutes which is the amount of time we're going to need to to to light it for a launch so what we're doing today is we are replicating as much as possible a launch and we have to remember that that what we're testing today this is a test vehicle it's also the flight hardware this is the same rocket that by the end of this year we'll be launching the orion crew capsule around the moon now by the end of this year that orion crew capsule will be uncrewed when it goes around the moon but by 2023 we're going to send american astronauts around the moon and by 2024 we're going to be landing on the moon well thank you so much administrator breinstein i'm sure you want to get somewhere a little warmer where you'll be able to watch the test great to be with you it's great to be with you too thank you so much it was just a few weeks ago that we announced the astronauts for the artemis program let's take a look and meet those astronauts right now at nasa we have always answered the innate call to go with artemis we are going to stay proving that humanity can live on the moon mars and other worlds and share the wonders of the solar system with all our story is one of people all those who make this journey possible from advocates across communities to companies across industries to countries around the world we achieve this collective endeavor our efforts create impact for all technologies that revolutionize industries and jobs that bring prosperity to people the discoveries from space benefit the way we live on earth today and those from the moon will create a better future for generations to come but to do that we must go hi i'm chad lindgren my name is raj achary kayla baron kate rubins hi i'm christina cook nasa astronaut joe acaba jessica amir woody hoberg and maclean stephanie wilson my name is johnny kim nicole mann victor glover jessica watkins hi i'm matthew dominic jasmine mcdelly frank rubio scott tingleton this is what we do this is what we will do let's go [Music] [Music] we go to the moon to learn how to live on other planets for the benefit of all if you are just joining us welcome the engines on the sls core stage are expected to fire up at four o'clock eastern three o'clock local here at stennis space center before that happens let's get a closer look at the space launch system nasa's space launch system is artemis's super heavy lift rocket and provides the foundation for human exploration and scientific missions to the moon mars and beyond powered by two solid rocket boosters and four rs-25 engines this rocket provides unprecedented power and capability designed to reach 23 times the speed of sound and an altitude of more than 100 miles in just over eight minutes offering more energy volume capacity and payload mass than any rocket built today under the launch abort system orion and the upper stage and between two solid rocket boosters is the heart of every sls configuration the core stage towering 212 feet with a diameter of 27.6 feet and storing 537 000 gallons of liquid hydrogen and 196 000 gallons of liquid oxygen this is the world's largest core stage ever built the core stage for artemis one fires up for the first time at nasa's historic v2 test stand [Music] so there it is the artemis one sls core stage on the b2 test stand the teams on site are planning to fire up those four rs-25 engines at four o'clock eastern now alex i know this is a culmination of tests here but it started way long ago let's just go back one step and talk to me about how this was built and assembled that michigan assembly facility absolutely you know so originally the core stage was designed um up in huntsville by our sls program team and also our boeing team um and then you know manufacturing began at misha assembly in new orleans it's our state-of-the-art manufacturing rocket facility it's more than 44 acres under a single roof and obviously through the production of that rocket we eventually move the core stage um from the issue assembly facility here you know that process is no easy feat you know a lot of coordination at michoud uh to be able to ship that thing and get it here in in the proper amount of time and so you're talking about moving a rocket on the mississippi river right yeah so you know we have a bar it's called the pegasus barge and this bar just um it's kind of our carrier for the core stage you know it's it's a fully covered barge um you know and it carries our core stage all across the mississippi and eventually to kennedy space center and then when it lands here how do you get it into the test stand so whenever the corsage does arrive to send us um you know we have a very talented and very experienced lift team and you know they bring the corsage to the sand um they lift the core stage in a very slow process and lower it into the b2 test and secure it and then we begin our rounds of testing your rounds of testing what does that look like well we actually have a series of green run testing you know this is actually the eighth test in a full series of green run tests that we've been performing over this past year um you know we start with modal testing which is kind of testing the vibrations and the structure of the rocket to see how it's going to react when we do do the hot fire and then we do things like powering on the avionics all the electronics equipment and then we move into activating safety systems you know testing nps components and kind of piece piece by piece building on what we previously did to finally get to the point where we are today and today we call it the green run hot fire test why is it called the green run well the green one really um refers to the parts in the rocket never being flown before so obviously all these parts have been tested by themselves but they've never really been tested as one giant unit so today we're really looking to get all that data and fire and fire for the first time i mean obviously the run refers to all the series of tests we've done to get to this point well alex thank you so much again we're going to be coming back to you we're also uh later on in the show going to start hearing some audio from the control room so i'm going to be relying on you alex to let us know what they are talking about and the hottest part of the show today will be those four rs-25 engines at the bottom of the core stage an interesting fact these rs-25s we're testing today are repurposed from the shuttle program these four engines flew on some pretty iconic shuttle missions including one of the hubble space telescope servicing missions the historic return to space of mercury astronaut senator john glenn six flights to the space station and the final space shuttle mission in 2011 so you can trace a direct line from that final shuttle flight to the first flight of sls we've worked with our partners at aerojet rocketdyne to upgrade the 16 shuttle main engines which will power the first four artemis flights and now we're building 24 new engines using 3d printing and other manufacturing innovations to reduce cost complexity and manufacturing time and a reminder the test teams here are looking at three o'clock central four o'clock eastern for today's hot fire test of course many of the teams who worked so hard for this day can't be here in person because of social dis distancing but they are still cheering us on virtually hello i'm terrance jones human resource business party at stennis space center america's largest rocket engine test complex we're so excited for our green run test team at the historic b2 test stand we are go for green run go artemis go sls [Applause] the arrogate rocketdyne rx25 engine team is extremely excited to show the world what our hard-working team has been able to accomplish our team is working tirelessly to rebuild reliable engines to ensure the future of human exploration beyond earth's orbit let's go back to the moon go aerogen rocketdyne go nasa go artemis [Music] [Applause] one we are boeing and we are so proud to be part of team artemis all right guys let's light it up so great to see the team cheering us on for this historic event and you guys have been cheering us on online also and in celebration of being one step closer to landon astronauts on the moon we've been asking you what would you take on a trip to the moon let's take a look at some of the entries that we've received we have an entry from the new orleans saints and marcus davenport from the new orleans saints he would pack his helmet and a football what is a trip to the moon without a helmet and a football hood at we also have an entry here moon kit from storm lake elementary stem it's great to see the little ones packing their moon kids storm lake says that our moon mission is back on track students k-1 are preparing to blast off next week by packing their moon kids and in their moon kits they have a soccer ball an astronaut suit shades and a camera you never know if it's going to get bright out there good job we love your moon kids and how exciting is this we have an entry from the one and only marie condo let's take a look at maureen's moon kit she is packing a blanket because she gets cold i could use that right now she has boxes to keep things tidy she knows how to pack and she also has a picture of her family because they spark her the most joy awesome and in responses to what would you take to the moon we've received some really creative entries let's take a look at some more of those entries that we've received i'm really excited to see some more of [Music] these [Music] wow it is absolutely incredible to see all of the moon kids that you guys have submitted we literally have them from all over the world and i'm being asked what would i pack in my moon kit on my moon kit i would pack my pomeranian azania and i would have a pretty big box so i could squeeze my three boys and my husband in my moon kit what about you lee what would you pack app you're absolutely right i'm not leaving earth without my german short hair pointer penny and when i told my husband that he was upset that i didn't say i was bringing him and my sister casey as well so we're just turning the moon into a family vacation we've been telling you a lot about the hardware we're testing today but none of this is possible without the thousands of people at nasa boeing aerojet rocketdyne and the companies around the country working hard through the coronavirus pandemic and multiple hurricanes to get to this day from here at stennis where we test to the michoud assembly facility in my hometown new orleans where we build to our marshall space flight center in huntsville alabama where it all began there is so much going on behind the scenes here's a look at marshall's software integration lab which represents the brains inside sls i am the lead of the team that is building and testing the core stage all the boxes you see here and all and the miles of cables that you see this is what the inside of the core stage looks like so you can see it's very complex and what we do here is we run a lot of simulations to ensure that we have validated the systems and integrated them together so we actually have special software that's a version of the flight software but it's really specific for our green run test and so that testing has also been integrated into this laboratory and with all these avionics boxes to ensure we have a successful hot fire best part of the job is working with all the people and the teamwork it's been extremely fun to watch how everybody has pulled together with the same goal in mind we have more than a thousand companies across the united states that support us some of them are small mom-and-pop shops all the way up to the big contractors and each one of the individuals that have been working with us have a significant contribution and they will be should be extremely proud not only when we do their green run hot fire but when we have our first artemis mission launch if you're just joining us today we are live at nasa's stennis space center in mississippi for the green run hot fire test of the core stage of our space launch system rocket at about four o'clock eastern over there at our historic b2 test stand we are going to fire four rs-25 engines for up to eight minutes to prove this rocket is ready to launch later this year on the first artemis mission to the moon again so many people have worked to get us to this day and even if they're not here in person they are ready for this big milestone [Music] on behalf of all of nasa employees and nasa contractors at the me shoot assembly facility home of america's rocket factory we wanted to show our appreciation to everyone supporting the green run hot farm we are with you and together we are making history my name is preston jones from nasa's marshall space flight center i'd like to say congratulations to the sls team for the core stage team for this great milestone achievement as we go into green run let's say go drink gun [Applause] [Music] from everyone here on team flf we want to wish spanish and everyone down there at the beach fan a happy and successful green run go green run and sls [Music] we have an update for you again this is a live show we are hearing what you're hearing and we are learning as we are moving through this day of test alex do you have any update for us on why um we might be possibly going faster or slower or what this is like right now yeah so our test conductor just alerted us that they're working through a few issues on the stand um you know like we said this is a test so we will see some delays or some possibly you know some issues that we'll have to work through it's all part of testing so as we get more information in we'll tell everyone and we'll work through it and we did talk about this this is a test this is not a demonstration why is it so important to test today right i mean the whole point right it's not a demonstration flight you know we're out here to test a rocket learn as much as we can and that will really not only help us for the first artemis mission but for all of our future artemis missions as well and so what are we actually learning we've got a lot of different components a lot of different pieces of the rocket that we're looking at what do these tests really look like we're really here to simulate almost what a launch would be like right the whole core stage um with the computers and everything it thinks that it's going to be launched even though we're holding it in place and testing it we're basically going to put it through around a testing that's going to simulate the launch so the whole point is to make sure one to verify that the core stage can perform that way and two get the data that we will need for launch today you've touched on this but how much do the nasa engineers really not know about this rocket what are you really learning and what are you just guessing or finding between the the data points are already guessing well obviously our team you know is knows a lot about the rock you know they've been part of this project for a long time um everywhere from you know the beginning of the production to designing the rocket to testing the rock you know they've been part of every step along the way um but even then you know you're constantly still learning and that's and that's part of the whole process um that's part of the process with any new rocket um and so you know that's that's why green run is so important to us and so important to the team and so important to the future of the artemis mission we've heard you describe the rocket almost like a human we learned about the brains of sls you talked about breathing so there's parts of the rocket that can actually move as the test goes forward today is that right right yeah a lot of people don't realize this you know we're pumping all that propellant into the into the core stage you know and that's really really cold you know you're talking about a lot of changing temperatures when you're hot firing the engine i mean you'll have a lot of parts that'll be moving not just you know tanks shrinking and growing by a few inches just because of that temperature change so you know it's almost like a like a breathing human being you know you'll when you when you turn it on it'll actually feel like you know it's rumbling you'll hear it you'll see it and it'll be super exciting so when you turn the rocket on that's got to be harder than just turning your car on at home what's that like right absolutely you know we actually started vehicle power on a few days ago and you slowly turn on individual avionics boxes and then you have to charge the batteries right and so you're slowly turning it on one by one and doing verifications of each system as you do turn it on finally to the point where you have one large core stage working all together simultaneously simultaneously and you talked about temperature changes can you describe the changes that the engines will go through today right absolutely so the fuel that we're adding to the core stage right that's our liquid oxygen and liquid hydrogen both fuels are very very cold no yet they have to be very cold to be in liquid form and not in their natural gas state so you know we're looking at temperatures uh negative 400 degrees you know a little bit more than negative 300 degrees for those two propellants and then when it comes time for ignition you know in less than a second you know we're getting up to a few thousand degrees temperature that's a big difference really quickly yeah it's very fast you know and that's part of the thing which propels the core stage and the rest of the sls off the earth's surface i gotta say you're keeping calm you've got a cool level head right now but i have to imagine you're excited about this you've been working on this for years yeah you know it's an absolute surreal experience you know for everyone who's been working on this you know for the last few years and even longer than that you know i think it's everyone's really excited about the core stage test everyone's excited to see it be launched for artemis one and for the future artemis mission so um i know the whole team's working hard you know the team in our test control center is working very hard so you know i think everyone's just looking forward to it i do want to talk a little bit more about the team because we see some people here but it's actually people across the country can you talk to us a little bit about the different companies that have gone into integrating with nasa here and how all that comes together yeah absolutely you know we we have thousands of thousands of parts on the rocket you know and there's tons of companies and subcontractors you know small companies big companies um and so you know we have more than four we've had parts from more than 44 states across the nation i mean obviously you know our boeing contractor our lead contractor for the project you know they've been working hand in hand with nasa the whole time those teams have really out been performing really really well thus far and then obviously our rs25 engine supplied by air jet rocketdyne we know all three of our teams have done a really good job of getting to today well alex thank you for being in the hot seat explaining everything to me and to everyone at home we are actually going to move forward now we're going to give you a little bit of a break feel free to take some water and listen in we actually would love for you to listen into the control room so we can come back and ask you uh exactly what they're talking about give us a breakdown i'm excited now to be talking to an astronaut who is here with us tracy caldwell dyson tracy it's so great to meet you thank you so much for being here my pleasure it's a real honor and a privilege to be here so thank you it's gonna be exciting well first i want to talk to you about the act of launching off this planet you have flown on the shuttle sts-118 specifically and one of those engines that flew you to space is powering this very core stage that's pretty cool that is real really cool all right i have to ask you first basic question what does it feel like to launch oh gosh there's so many feelings uh even before you even get inside the vehicle as you're walking up to the launch pad you see this mammoth rocket standing before you and uh from the sensations to the the things that you see to the things that you realize you've got a job to do but yet you're doing this um incredible uh you're having this incredible experience and from the the light off of the engines to the uh to the lift off uh the the swain of the rocket the rumble the the all of the vibrations the controlled explosion happening underneath you to the constant acceleration that you're feeling as you're propelled into orbit to the you know the engines are throttling all you know is that you're just going fast and um and then you're in there with uh your bodies um you've been training all this time uh you get to um the the solid rocket boosters as soon as they expend their energy and they separate from the vehicle and you're just riding on those main engines the rs-25s i remember being so impressed with how smooth and powerful that ride was it was like riding on rails and then of course the moment you get into uh into orbit it's some of the the most strange tranquility that you've ever experienced in your life i want to ask you to do something here if you'll indulge me for a second let's just take a look back because we are about a mile away from sls well as you take a look at that what's going through your minds you know i have to i have to give it up for the folks there in the control room right now because i you know i can remember how i felt standing at the at the foot of the rocket before i launched on it but all those folks like alex was mentioning that have played a role in this plus uh the ones that are around the test stand um that is their baby and um when those when those engines light there's um there's a lot of uh hands and eyes and hearts and soul that are uh that are in every ounce of thrust that are coming out of those engines and so i think when i look at that i just think about all of the people um who make up the body of that rocket and the thrust that's coming out of it and i'm really excited for them excited for all of us and it's exciting for all of us here and what's the difference with the um excitement in the astronaut community oh goodness um well i'll tell you what there's a whole lot of other blue flight suits folks that wish that they were here today we are just genuinely excited about this opportunity to um to go further than low earth orbit and explore again our moon and to set a foundation along with those footprints and to go beyond that and to just be here at this time with all this excitement is a real privilege for all of us um but as as a corps of astronauts um we're just really excited about where we're headed all right you said moon so as we progress towards the moon talk to us about the significance of the human element in space why is it so important to put humans back on the moon well goodness um i think there's so many ways to answer this but i think you know we we have it inside each one of us to uh to to discover to explore to um let out our creativity and um i think the reason it's important for humans i mean technical technically it's important because um we know how to make decisions right then and there especially with time delays and and uh not having a camera view every single place you need to look it's uh i think vital to have humans involved but the spirit the of exploration is within our hearts and uh there's no other way to live it out but uh to send our humans um to these destinations and there's a lot of people watching today and a lot of kids watching today young girls watching today do you have anything you want to say to them specifically oh goodness uh well with what time we have left i would say that um the most important thing to do is to uh is to know what you enjoy doing and start now taking note of those things because what we really want is um is the best in you and what brings the best in you out for everyone to see is doing the things that you enjoy and so i would encourage everyone to to go and explore all the all the things that you um are doing right now and ask yourself if um if you didn't have to uh if you didn't have to get a grade in this would you still be doing it um and so i just think that it's it's within their reach to um to fulfill their dreams as long as what they're doing is what they enjoy stay curious stay curious absolutely well tracy i'm lucky to be with you we're both lucky to be here right now but there are a lot of people at home who've got questions for you too would you mind if i asked you some questions off of twitter please do all right we're gonna jump to uh a few questions we've gotten in the first one is from amber amber on twitter asks what is the main mission or what do you hope to learn with these next series of landings on the moon i think uh what we are trying to learn is um just make sure we know how to get back there and then to to set up uh to set up our um our mission so that we can come back and we and our whole goal is to is to lay a foundation on the moon and make it sustainable so that we can continue to come back and so i think the most um the most important thing is uh is to is to test our systems and uh to make sure that we can duplicate it so make sure we don't get lost and that we know what we're doing when we get there okay that's a great answer all right another user on twitter asks what would be your final meal before leaving for the moon oh goodness ah what would be my final meal you know what i would i would this is gonna be boring but i would want a salad why why because i want fresh food before i go because the rest was going to be all dehydrated i'm pretty sure did you get queasy on the launch too no uh i didn't um and i think part of that's because you are so highly trained and you've got a job to do and you're highly focused and with all the g's pressing against you it kind of keeps your stomach still it's keeping it down there one last question for you what is the coolest thing you've experienced being an astronaut oh i gotta say that it is um being in uh shorts and a t-shirt living on board the space station looking out the window and gazing at this beautiful planet that that probably is the most exciting coolest thing i've ever done as an astronaut well tracy thank you so much for being here i hope you get to enjoy the show and uh thank you to everyone watching and submitting questions online what we're going to do right now is we are just going to watch with you we're going to take a step back we are going to watch the test stand and we're going to listen in and we are going to ask alex to uh please pay extra special attention because we're going to come back and ask you what's going on in the control room so again we are going to take a step back and i'll just watch the test stand for just a few minutes [Applause] and a reminder we are in a dynamic situation the teams are in a hold right now we are still well within our window for today's test the teams are working towards getting an updated test time for today so we have alex with us and alex um we were listening into a little bit of the control room audio what does it mean that we're in a hold and what were you hearing from the control room right so right now we're still in a stable replenish and basically what that means is we're still getting fuel into the tanks from the facility and the replenish cycles kind of meant to maintain topping off the tanks to their full capacity as some of that liquid does turn back to gas and we've been off that gas so we are in a stable replenish phase um obviously some some of our engineers in the test control center seen some data that they don't like or might be not exactly normal for what they usually see um so those teams are off now kind of having sidebar conversations with each other to kind of determine what we need to do to go forward so i want to go back because all this might be obvious to you but we're trying to figure out where we are in this whole process we thought you know we might just come here and see the engines light up but that's not what happens so what happened up until this point and what are we waiting on now right so like we said you know we've powered on the vehicle right over the last few days you know we've we've prepared all the systems we've tested all the systems um and then this morning we started tanking you know by uh filling both our liquid hydrogen and our liquid oxygen tanks um with propellant and so that's really been the long process today i mean obviously we have to chill down our main propulsion system so all of our mechanical parts have to be chilled down to a certain temperature before we do a hot fire as well so you know right now they're obviously working through some some issues in that process you know and as we learn more as they learn more we'll learn more and so whenever we do hear audio we'll be able to give a better update so why don't you tell us a little bit about that process we're talking about chilling down the engines themselves right yeah all the engines and all the components inside the engine section which holds the engines have to be towed down to a certain temperature before you uh start the actual hot fire the ignition of the engines um and that's just because they're you know they're meant to operate under those cold cryo cryogenic temperatures um and then obviously when you're hot firing the engines you start to heat up those parts right so you want to cool them down to a certain to a certain point and then obviously you'll heat them back up whenever you're firing the engines so say this hold is lifted um what will happen next so if when we do or when they talk about the hole and they lift it to continue operations you know we'll from that point we're at the point where we'll start to move into our t minus ten minute countdown um and that countdown kind of moves into our final sequence of activities uh to finalize right before we get to the actual hot fire so there's a whole set of activities we get every few minutes and that'll kind of determine um like what time we will fire and then that we are actually going to fight will we be able to see anything during that t minus 10 countdown or really not see anything until the last second yeah you'll probably see a few things and it's a few of those things you might be able to see right now the water suppression system is operating it's not operating at 100 right now because we're obviously not hot firing the engines but when we do you'll be pumping 100 000 gallons of water every 20 seconds um you know you'll you'll be able to see obviously uh some of the engines gimbal which we're moving in a few degrees in different directions um and that'll be part of the the run up until we actually do activate each engine and you've told me this before off stage but i thought this was fascinating so we haven't had a test like this since the apollo era and there was something that happened then with the giant plume that actually made it start raining on everyone out here can you tell us that story yeah absolutely a lot of people don't realize is no we have our two propellants our liquid hydrogen and our liquid oxygen um you know and when you react with those two chemicals you know you're really just creating h2o so you're when you see the big plume coming out it's just water vapor right and you know since when we attested apollo you know back during the um saturn 5 program you know that the amount of water vapor coming out during that test is quite breathtaking and also it's so much that it can create clouds and sometimes rain clouds so sometimes you can get rained on from that all right so we can expect possible rain even though it's a beautiful cold but sunny day today what else can we expect to see right so you'll hear the test conductor audio um when we get into our t-minus 10-minute countdown so after that yo you'll hear you know every few minutes him come on come on the phone and say hey we're you know we're getting to this step and then you'll hear the engines rev up for the hot fire well alex thank you so much we are going to remain live i might be coming back to you in a minute in 10 minutes but we are really excited to have you here explaining everything to us and a reminder to everyone at home this is a live test we are still listening in for the control room teams as they review the data of the test up to this point they are having a conversation right now about the appropriate steps to move forward so alex we've had a little bit of a talk about those discussions again we're going to be coming back and forth to you and again a note to our viewers we're going to be hearing calls from the test conductor at regular intervals over the next 10 minutes or possibly more when we hear those call outs what we're going to do is we're going to pause and listen in i might turn to alex and have you explain them to us again for right now what we're going to do is pause and listen for some of those so we can try to catch up with the rest of you and everyone in the control room find out what's going on and just take a step back and look at the beautiful sls on the test stand now [Applause] okay all personnel kind of keep it down the control room please we are coming up on another event here in the terminal countdown timeline coming up on about team minus 40 minutes in about two minutes [Applause] [Applause] right all personnel we're going to be picking up on page 3.27 we're at the team eyes 40 minute time market event step 4.61 sce let's go ahead and initiate the terminal count sequencer ioc for sub step alpha let's go ahead and enable tcc user underscore hold let me know when that's enabled user hold enabled in green got me and then please enable stctr 48 please the stage controller terminal countdown engine anomaly if not already enabled uh stctr 48 enabled in green copy that takes the system 4.62 sequencer let's go ahead and perform the stage contour terminal count sequencer set up as follows please ensure the countdown timer is open cdt window is open and ensure your display test commit criteria is also open uh tcc displays alpha open copy and we're going to give a sub step charlie if you would verifies on the terminal account sequencer that the isc has been initiated uh verified initialization was successful coming and verify engine configuration is hot fire engine configuration is high fire and verified display configuration is hot fire display configuration is also how far for sub step four please record the version of the gls events table being used for today okay version hot fire version r 98 rail eight did you copy that pqa no sir engine configuration being used today is hot fire version r 98 rail 8 version high fire or 98 rev a correct alpha copy that takes the top of it hey is that alpha right hot fire r 98 rev a copy okay that takes us to the top of page 328 for sub step five verify that the engine configuration is the desired version of the gls events table you just mentioned and fire and verify the display configuration is also the desired version of the gls event stable also confirmed okay under your tcs engine status verify activate sequencer is selected and displayed tcf engine status activated uh copy that okay for the note there she says we'll automatically stop at the t-minus 10-minute hole point h-e-a if you run 16 step 4.63 is yours copy that ntc is 8916. getting a second here's come to 16. go for ncc mtc can you please verify and or perform a helium spin start panel activation per dop 11 to provide 1000 to 1300 psig to the captures roger that it is set up copy that and it's complete record a utc on that of zero one six twenty one 1707 copy 016 21 1707. coming into ntc the next step is yours per step 4.64 please roger that and uh in btc let's go ahead and prepare this the deflector for test configuration and he's on the phone but he's been coordinating with water plant and he'll get the bypasses open in just a moment copy that and then to see per our discussion we will keep the main we will maintain the current timeline in the current countdown time for our discussion sounds good [Applause] you are watching nasa's green run hot fire test here at stennis space center the teams are in a hold but we are still well within our window for today's test still and i am lucky to have alex here with me we've heard a lot of conversations from the control room over the past few minutes i heard hot fire a lot i heard water a few times you're the expert what were you hearing so um the test conductor instructed everyone to go back into our terminal countdown sequence um and so at this point we are about 30 minutes away from the hot fire according to the terminal countdown sequence um some of the other things they're kind of talking about um they're turning on the water deflectors right for the engine test so there's certain configurations that we need to put each thing on the stand or thing on the ground in a certain configuration for that hot fire so um they're you know they're supplying a certain amount of pressure to different components inside the engine section and like we said turning on those water deflectors retracting some of the stands around those engines really to prepare the stand and the core stage for hot fire we heard at least two people talking is that right what were those people what are those positions back there right so the test conductor is basically relaying information to individuals working a console and each of those console workers are either going through test criteria right so we have test commit criteria for each part of the test you know they're looking at different things that are happening with the stand they may be controlling the water going onto the stand so um he is in direct communication with each person that is working each individual component on the stand so you'll hear them giving out a lot of commands of things that need to go according to our countdown sequence and where are they they're even closer than we are right and they're in a safe place i hope right absolutely they're in a test a test control center um closer to the stand i mean that stand is wired has wires running all the way to the test control center um and in the test control center they can see everything going on they can see all the cameras um and they're each sitting at console and they'll be able to make decisions real time so you know they're sitting in a in a building it's fully blast proof right has giant blast doors closed in there so um you know the team's working really hard you know there's a lot of people in there looking at a lot of stuff um so you know they're obviously working through it and uh working towards hot fire and those two people we heard are they sitting close to each other are they hearing each other kind of like we're hearing them now so the test conductor audio um you know he's he's in he's in one part inside the test control room so you know he's he's talking on a in a regular voice kind of like we are and then he could be communicating with someone on the far end of the room or he could be communicating with someone sitting right next to him but that's all over the audio kind of like we're hearing so is this considered normal when you think about testing a rocket yeah absolutely you know that there's a ton of people who play a part in the actual test of a rocket or in the launch of a rocket right so you have to have a proper way of communicating proper one-way or two-way channels so that the correct people can be heard at the correct time so everything that's happening is you know is obviously planned as far as you know communication and working through issues and then now that we're in our close to 30 minute terminal countdown we'll be hearing a lot more things over the radio and we heard about this window so there's a certain amount of time that they have to be able to light these engines it's not like a launch window where we're trying to reach the moon so we have to pay attention to that but what does this window mean so you know there's there's certain operating um guidelines that we have for certain things in the engine there are certain times that we can have avionics boxes powered on and there's certain times that we're allowed to have the batteries running on internal power things like that obviously while the core stage is integrated to the stand we have a little more leeway because the stand is supplying a lot of that power supplying a lot of you know the materials we need to continue testing um you know it's going to be more of a process for them to determine what the next step forward is for testing i mean i'm sure it's something we'll hear over the test conductor audio okay i'm going to be coming back to you a lot more again we're going to keep you in the hot seat here even though it's cold outside we're all excited for the the big hot blast um coming and i think you said about 30 minutes is what we're expecting so again what we're going to do a reminder this is a live test we're still listening in for the control room teams as they're reviewing this data as we're leading up to the test point they're still having a conversation right now about the appropriate steps to move forward so again we're going to join you we're going to take a step back and just watch we're going to look at the test stand and listen in for the control center we're going to let alex digest it all for us and we'll come back to you in just a few minutes [Applause] [Applause] [Applause] [Applause] [Applause] [Applause] [Applause] [Applause] [Applause] [Applause] [Applause] [Applause] [Applause] [Applause] and you are watching nasa's green run hot fire test here at stennis space center the teams are in a hold but we are still well within our window for today's test and we did just get an update and so we've got our expert here alex a core stage engineer alex what did we just hear from the control room so our test conductor is kind of discussing um a path forward obviously with our test right now we're about the t minus 10 minute mark so we're in a holding pattern for that t minus 10. they're going to go around continuing to monitor our fuel levels you know our propellant how much propellant we have not only in the core stage itself but also we have on reserve and then over the next 10 to 15 minutes they'll kind of have a discussion about you know our proponent reserves the path forward and whether we're going to go into that t-minus 10-minute countdown sequence okay so we heard about one hold earlier when we started taking our pauses and listening in this sounds like we're in a different hold is that right right so the t-minus tin hold is is really the last major milestone before we get into a lot of the major operations that we use um to get into the actual hot fire so you know starting at the t-10 mark we every minute we have a lot of very important tasks that we'll be doing up until hot fire okay so let's walk through those what else will we expect to hear once we hit t minus 10 and then what are some of the calls we can expect to listen in on and expect going forward right so once we start t minus 10 count we'll have a lot of software that gets initiated to to start the the hot fire right on some of that's automated some of it's not um you know we'll move into activation of some of our major propulsion components um we'll turn on our cappus at about the four minute mark and those are used to kind of steer our engines with our hydraulic system from there we'll start certain purges inside the engine section and then we'll move into internal power within the rocket so it's fully powering itself and then we'll start the engine sequence and a reminder this is a live show we are listening into the control room it's very important that alex doesn't just keep talking giving us interesting answers the whole time because he needs to listen in to be able to digest what we're hearing so uh he can tell us what's going on and we can get more of an update so we're going to do that now we're going to take another pause we're going to sit back with you just like you are at home and we're going to watch the test stand we're going to have alex listen into the control room so we can come back and find out when we can watch the sls core stage hot fire test we'll be right back [Applause] [Applause] [Applause] [Applause] [Applause] [Applause] [Applause] [Applause] and if you've been with us since the top of the show you've heard me say this a few times but we are so happy you're still here with us you are watching nasa's green run hot fire test here at stennis space center in mississippi the teams are still in a hold and we are still within today's window for the test we do have an update so i'm excited again to have alex cagnola here with us alex what's happening right now so right now our teams are still kind of doing some preps before we move into our t minus 10 minute account there's a lot of just individual preps you have to do on the stand um individual components you know certain configurations we have to put everything in before we actually do perform that hot fire um you know they're going around they're pulling uh all of our program management and our and our chief engineers to see um you know it you know are we good to go on you know or we need to move on um you know we're also monitoring other things you know we're monitoring how much propellant we have in the tanks how much propellant we have on reserve on the barges to to use for the hot fire um and then just as we work through those issues we'll hear more information as we get closer so you said monitoring how much propellant we have on the tanks why is that important at this step right so this whole time before we go into hot fire we're in a phase called replenish phase i know we kind of talked about that but you know that fuel is very very cold and you know in the outside right now it's not as cold right um and so you know constantly that fuel is being converted into gas and then vented out of the tanks and then so the entire time we're in a phase called replenish where we're constantly pumping a little bit of fuel back into the tanks to make sure it's at max capacity and we've said at the beginning of this show that this hot fire test can last up to eight minutes what i understand is we can learn a lot in just the first few minutes is that right right you know a lot of the engineering data we're looking to get um really comes in the first 250 seconds so you know whenever we do initiate hot fire you know we're going to be gambling our engines a little bit right so we'll be moving the engines in a certain pattern that'll kind of mirror what we might expect during launch um we know we'll be throttling down the engines for a while then we might throttle them back up you know there's there's a lot of things that we're going to try out and most of those things will be in the first 250 seconds obviously when we want to go for the full eight minutes that we will see during launch um but you know i think we'll get a lot of really useful data in those first few minutes so you said gimbling the engines moving them a little bit it's not like a nascar turn or anything like that we'll be seeing the engines right just small movements yeah it's very very small movements and you might not even notice you know it's only a few degrees in each way you know and you might see a couple of them move the same time or you might not but that few degrees can can really change your trajectory of your rocket when you do launch it so it's important to be able to test that here at stennis while we're hot firing and not just when the engines are just sitting there it's a lot different when you have all that thrust coming out the bottom of the rocket than it is just testing it without it so i'd love for you to take a second with me and just take a look back we can see a little bit of white steam smoke coming out can you describe that for us right so what you're kind of seeing right now is the max deflectors um the water deflectors on the flame ramp right so we kind of talked about how much water they're pumping you know 110 000 gallons every 20 minutes or so so it's a lot you know it's a lot of water coming out um you know and roughly 32 000 holes on that flame ramp that are all pumping water so you know obviously you're going to see a lot of mist before the hot fire and they'll actually even increase the amount of water coming up when we do get closer as well and those are called flame buckets am i right yeah that's right it's a flame bucket um you know you might even see some flame coming out of there whenever we do light up all four engines so it'll be very exciting um you know in in you know obviously all the safety systems are in place to take care of that when we do do hot fire okay and again we are still in a hold in some way this is a planned hold we've got different versions of holds throughout the test uh and as we get more information we're going to come back we still have alex here with us i'm not going to let him leave you're going to stay miked into your chair right here because we want your expertise on what's going on and as soon as we have more information from the control room we're going to come right back to you for now we are going to take a step back and look at the test stand just like you are at home and we'll be back in a few minutes [Applause] [Applause] we've got our most exciting update uh in a few minutes we are now inside terminal count and again i'm not the expert here we've got alex cagnola with us who's going to explain what that means and how did we get to this point right so the test conductor just came on the auto and on the audio and alerted us that we're about nine minutes away actually so um we'll be getting some pretty regular updates here um you know we will be hearing some activation of some different components on the rocket before the hot fire i mean obviously there's a lot of steps that we'll be hearing um going into the actual hot fire with things like like we talked about cap activation you know move to internal power um you know there's any kind of audio that might slow down the terminal count they'll kind of come on the air and tell us that too but right now we are in that final sequence that lasts you know eight and a half to eight minutes um so we're going to sit back and kind of listen for the updates from the test conductor and this wasn't one person's decision this is a full group that has to make the decision that we are ready to keep going right everybody one second what i do want to remind everyone now is that you're actually able to hear the control room audio just like we are so what we're going to try to do is when the test conductor starts talking i'm going to rudely cut alex off in the middle of what he's talking about and try to make sure that we can all listen and give him enough time to understand that call so uh we just missed one again this is a live show but i want to get back to how we got to this decision and again it's not just one person right you know that goes back to you know we have a great team working on all the engineering issues you know and then obviously you know they kind of come up with a story about what's going on and they present that in the best way possible to our program management and to you know those who who are the big decision makers and so every time we have a big milestone like this we have to pull the whole board you know everyone brings up their concerns um or if they think you know going forward what they think um and then do a go no go pull and it sounds like everyone wants to go so we're moving forward terminal count okay and again you can hear some of that test conductor audio i'm sure you couldn't hear that one because you were talking giving us a great explanation but now i do want to know so um in within these 10 minutes we're now about seven minutes i understand what are we expecting to hear from the test conductor right yo you're here test conductor say a few things things like initiate purge start and that purge will be a nitrogen gas purge inside the engine section that's part of just a normal sequence of purging the whole area around the engines before you initiate hot fire you'll hear move to internal power that's a big one we'll take all the now all the boxes and all the batteries everything on board the core stage will be powering itself almost like you would have during launch um and then you'll move into aos start which is our pre-ignition engine start um and that'll be right before 30 seconds before t0 or we'll power up the engines okay so we're about six minutes on my mark we just heard about six minutes was that right that is six minutes away so they're gonna start really um having a lot more calls on the audio we're gonna hear we might even hear some things being turned on inside inside the core stage so um you know obviously we'll start talking less as we hear more audio comes through okay sure what will those things sound like uh so you'll hear tcc you know um you know more and more calls they'll be talking to more in the control of individuals who'll be talking to people sir looks like somebody would interpret a tcs window yeah nobody else should have the tcs guy if you have it open please close it at this time so right they're just working through some small things between all the monitors you know they're they're opening and closing certain things that need to be closed inside the rocket you know from the stand um you know there's going to completely secure the stand with everything that needs to be done before the hot fire and really it's just the final preps before we do initiate engine start okay again you are all hearing what we're hearing we're pausing whenever the test conductor is speaking or other people in the control center are speaking because we're trying to learn what's happening to the russians it sounds like about five minutes away on their market again remind us who's the one in our ear what's that role so that's our green run test conductor and he's kind of been um the one in control of all the green run test cases not just this one being up to this point so he has a great working relationship um with all those that are on the test team and so um obviously right now we're in t-minus five minutes um you know so there'll be a lot of activation going up until we do hot fire so you know like we said caffeine spin up um you know move to internal power purge sequence and then we'll move into independent activation it's all going to come through for a second pcc violation we're holding four minutes okay copy that and we'll wait till we get to the hold at t minus 440. we're in the whole time we're in the go and if you want to go ahead and use that pre-plan blh let's um go to manual mode and try to dial in the delete delta v please if this is the right time can you break down what we just heard so they're moving into some some final sequencing um obviously you can see um on the flame bucket they've now initiated max water flow into the flame buckets you'll be seeing a lot two minutes 35 seconds on the on before the one minute and 40 hold from what i understand um so obviously that one minute 40 hold will be the last timer um before we do start uh start up the engine so it's very exciting i can hear everyone around us getting excited this is great and what we're going to make sure we do is we have to make sure we're all being safe here reset that whenever you get ready we are at the one minute and 30 seconds in the whole timer okay if you're in the band go ahead and reset mps 17 please so we're going to go ahead and take a step back we're going to put our ear protection on uh so we'll be moving into internal power um and again putting our ear protection on listening in from here on out and observing this major milestone on america's return to the moon with three two one we're counting down sequencer is counting coming up on t minus four minutes on my mark mark and he might three minutes on my mark mark coming up in t minus two minutes on my mark mark come up on t minus 130 mark coming up in two minutes one minute on my mark mark if um for all personnel report that you're ready to go pea okay a o r aea a go ntc all right we're in als foreign control all right close 25 seconds we got four good engines right it passes through at 60. 60 seconds get into our first gimbal profile go check and we got to shut down personnel uh shutdown looks like uh let's all go to page uh 656 please it offers out it's going to be post hoc fights post caught fired or shut down securing operations in page uh 656. i need you to verify with the engine guys sorry about that it does take us to the last page there on page 632 ar1 if you wouldn't step 4.241 please verify corsair jensen once and for have shut down for that step and we have a safe engine shutdown we are post shutdown standby engines one through four we just saw the core stage of sls fire up of course we also heard some test conductor come in so we want to go straight to alex alex can you please describe to us first of all what we saw and then what we heard yeah absolutely um obviously we had a very successful initiation of the engines um you know our the beginning of our thrust profile there when we were firing for the first minute or so you know we obviously are getting some really good data coming through um you know but like we said earlier this is a test you know we have test commit criteria and we have certain boundaries though we have to keep all the opera all the operations under so you know we really are trying to make sure that you know everything's operating properly and safely so you know the test team was kind of seeing some data that they might not like and so obviously you know our engines were shut down ahead of the eight minute schedule time frame but we do have a lot of good data to go look at and hopefully i know we can move on from here and maybe get you know see what's going to go on further so i was looking at your face when that started lighting up and that was incredible we saw the cloud forming we both saw rainbows just forming right over side just how did it feel in those first few seconds yeah it's amazing you know it never really gets old that feeling that you get you know in your chest or you know seeing you know just how powerful those rockets are when they're testing so um obviously you know it was an awesome thing to see you know and uh you know i can't wait to get the core stage to kennedy and get ready for launch and you told us you know over eight minutes we might have had tons and tons terabytes worth of data but we already have data just from right now what are they going to do with that right away right and so just like all of our other green run tests you know our we have teams that are going to go and break down that data and and kind of see what we're seeing in our profiles right so i mean that all goes into the you know the profile that we'll use for launch eventually kennedy so i mean obviously there's a lot of things looking at the data you know we kind of talked about you know over the span of our green run testing we have roughly 800 uh terabytes of data and that's a lot of data you know we're talking about it's it's hard to grasp how much data that is so you know we'll obviously take the time to dig through everything um and then obviously have a path forward from there and i know it happened really fast but can you tell us what the people were talking about that we could hear from the test conductor and that audio right so after we did uh engine initiation you know they're kind of going through and monitoring everything right so obviously once we are actually firing the engine so we have to look at you know all of our engine engine readings when it comes to temperatures you know how they're reacting how they're moving and all that stuff we were just getting into our gimbal profiling test which is you know moving the engines around right before we terminated the hot fire so we're obviously going to have a lot of good data to look at great thank you alex i'm so glad you're here and so as the engineers gather data from today we look ahead to the next steps this core stage will be lifted out of the b2 test stand and refurbish to patch up that orange foam insulation then the team will load it onto our pegasus barge about as long as a football field to make a six day journey from the gulf of mexico to our kennedy space center on florida's atlantic coast there it will be stacked in the iconic vehicle assembly building with other elements of the sls rocket including the twin solid rocket boosters which our teams have already begun stacking on the mobile launcher the core stage will join the boosters and then be stacked with the upper stage and then the orion spacecraft with the launch abort system on top all of this work putting us on track to roll out to launch pad 39b for a liftoff later this year on artemis one we are going to pause again and just talk about what we just experienced the stage was rattling that we're on here we saw everybody with their phones out who's able to be here today um talk us through from right when the engine started what did we just see right so you kind of those last minute and a half right you're kind of hearing the test conductor talk about you know move to internal power all go for als startup which is engine startup right and then at t minus zero you heard the final count where they're kind of pulling all the people who are really watching the critical components of the rock you know those critical readings we need right before we initiate engine start um so after you know everyone kind of gave their go we initiated engine start obviously um and that als you kind of saw the pre-burners going on that rock you kind of see some of the sparks flowing right and that's all part of the part of the test and then right before they start flowing um that fuel and that mixture and then it ignites and you see it at t minus zero so that's kind of what we were seeing running up to the test and then after that you obviously saw the plume and then the rest of the test as well and we saw a few different angles we were up really close to the engines how are we able to see that well obviously we have you know the cameras and um all of our views on the standard you know obviously well engineered cameras you know very protective casings and all that you know it's all important that we not only get the data but all the video and the view of what of what exactly is going on great well thank you again we may still come back to you but i want to remind everyone it's not just artemis one we've got several firsts on the horizon this year the first of our commercial lunar payload services or clips missions begin with two companies delivering instruments to the lunar surface the golf cart sized viper rover will search for water at the moon's south pole a small cubesat called capstone will head to the moon scouting the orbit to be used on later human missions and artemis one launches on an uncrewed flight to test both sls and orion on a journey beyond the moon and back to earth later on we'll be launching the power and propulsion element or ppe and the habitation and logistics outpost or halo to lunar orbit to become the first pieces of our lunar gateway which will provide the jumping off point for lunar missions artemis 2 will be a 10-day crude test flight where astronauts will set a new record for farthest distance traveled from earth and finally artemis iii in 2024 the hardware for those next two artemis missions is coming together right now at mishu the boeing team is already demonstrating faster manufacturing times by implementing all the experiences and lessons from the building the first core stage in utah northrop grumman is already building the booster segments for the next several missions as well we've also got the orion spacecraft for artemis 2 down at kennedy undergoing assembly and the spacecraft for artemis 3 is also being manufactured right now at michoud in our hometown of new orleans so that wraps it up for us here today after a major milestone on america's return of astronauts to the lunar surface a successful test of the core stage of the space launch system rocket up next we'll be replaying the test and we will have a post-test briefing in about two hours on nasa television we invite you to follow all of our progress online at nasa.gov artemis program or join the conversation online with at nasa artemis and at nasa underscore sls thank you so much alex for being with here and being our expert tonight thank you to the administrator jim bradenstein and astronaut tracy caldwell dyson and most of all thank you for joining us and go artemis system and grasp this in control all right where's 25 seconds we're we're still running so we got four good engines right back it passes through at 60. 60 seconds get into our first gamble profile dtgs we gotta shut down sale personnel uh shut down let's let's go let's all go to page uh 656 page 656 please working with nasa to send astronauts to the moon and onto mars we are making huge upgrades to the space shuttle main engines that flew on every one of the 135 space shuttle missions this new engine is called the rs-25 nasa has 16 rs-25 engines remaining from the shuttle program that have been modernized with new controllers and other components for the sls these new engines will be used for the first four flights now the team is building an additional 24 engines with even more improvements that will be

Channel: NASA

Views: 1,407,618

Rating: 4.8216634 out of 5

Keywords:

Id: ELHOXi2t3lk

Length: 140min 45sec (8445 seconds)

Published: Sat Jan 16 2021

Reddit Comments

[u/8andahalfby11]

Shut down 67 seconds in. On the loop there was a claim of "MCF" which Nasaspaceflight claims stands for "Major component Failure."