My job is pretty great! I get to learn about amazing animals and places,
and do fun experiments with all of you! And you know another job that seems really
great? You might even say it’s out of this world? Being an astronaut! Astronauts are people who travel and work
in space. Going to space seems like a big adventure—and
it is -- but that’s not why astronauts go to space. At least, it’s not the main reason. Astronauts go to space so they can learn more
about what’s beyond our planet. They spend weeks, months, or even a whole
year away from their friends and family to study space in person. Then, they come back home and share their
new knowledge with all of us! Do you want to go to space? If you do, maybe you want to know exactly
what it takes to be an astronaut, and what they do up there all day, before you sign
up. Let’s find out what it takes to be an astronaut! The fact is, practically anybody can become
an astronaut -- you don’t even have to be a certain age! You just have to have a few main things under
your belt. For one thing, you have to have studied science
in college -- which means, you pretty much have to be a grown up, or a young adult. You also have to have spent some time -- specifically,
three years -- actually doing the science that you’ve studied. That’s because most astronauts are actually
scientists! And there are all kinds of scientists who
work in space -- some of which we’ve talked about before! -- like biologists … … or astronomers … … or chemists! Finally, to be an astronaut, you have to go
through a special physical check-up. Because, living in space, where you’re always
floating around in low gravity, and in a crowded spacecraft, can be really hard on your body. So everyone wants to make sure you’re healthy
enough to do it. But that’s about it! Thousands of people sign up to become astronauts,
but only a very few are actually chosen to go on a mission. After years of training, those lucky few finally
get sent to space—where they have some really important jobs to do. What kinds of jobs are there? Well, some astronauts are pilots -- their
job is to get the spacecraft where it needs to go safely. They’re also in charge of getting the craft
back to Earth. Astronauts that aren’t pilots are called
mission specialists. And they perform a lot of different jobs. One of those jobs is to work with the pilots
to keep the spaceship and equipment working. This means they inspect the spacecraft and
its different parts every day to make sure everything is doing just what it’s supposed
to do. Another job for mission specialists is doing
experiments -- where scientists try different things to see what happens! Many of these experiments are done in the
International Space Station, or ISS. The ISS is in orbit around the Earth, and
was built for astronauts to work and live in for long periods of time. Some of the experiments that have been done
on the space station have been things like growing zucchinis, to see how vegetables grow
in space. Other scientists have looked at how different
animals -- like flies, or even squids -- get used to life in space. Another important job astronauts do is to
help launch satellites. These are machines that fly in orbit around
the Earth. And they can do all sorts of things -- like
take pictures of the Earth, or help us know what the weather’s going to be like, or
send signals for television and radio. Now, most of the time, astronauts do their
jobs inside the space station or their spacecraft. But for some jobs, astronauts have to suit
up—and go for a spacewalk! A spacewalk is when an astronaut leaves the
spacecraft to do their job outside, in space, and it’s one of the toughest jobs that astronauts
do. Astronauts do spacewalks when they need to
fix, or build, something on the outside of a spacecraft. And to do that, they have to wear special
space suits. There’s no air in space, and it’s really,
really cold, so these special suits protect the astronauts from the cold and give them
air to breathe. They’re also protected by being tethered,
or tied to, the spacecraft by a long cables to keep them from floating away. Being an astronaut sounds like hard work! But you get to see our planet from space,
and conduct awesome experiments, work on cool technology every day, and even go for spacewalks. So what do you think? Do YOU want to be an astronaut? Keep learning as much as you can about space
and science, and who knows? One day, it might be you up there. And let us help you get there! If you have a question for us about space,
or … well, any question, really! … just let us know by leaving a comment below or
sending us an email to kids@thescishow.com and we’ll see ya next time!
