The Strangest Galaxy In Space

if you divided Leonardo da Vinci's Mona Lisa into 20 equal parts and display them in 20 different museums around the world with the audience be able to enjoy the masterpiece and fully appreciate it of course not but looking at the world around us at our universe we admire its structure and beauty although we only see about one twentieth of it incredible right the fact is that we're able to see only five percent of what our universe consists of everything else is something that we know almost nothing about dark matter in dark energy which make up 95% of the mass of the universe they cannot be seen but the presence of these mysterious substances is confirmed by the distorted behavior of observed cosmic bodies in the same way we don't see the wind as it bends the tree but we know that it exists just as with dark matter in the 1930s Swiss astronomer Fritz Zwicky observed the Coma Cluster one of the largest galactic clusters in the constellation Coma Berenices he found that the apparent mass of the cluster is much less than what we could observe this data was confirmed 40 years later by the American astronomer Vera Rubin it became clear that hypothetical dark matter and dark energy exists both in galactic space and beyond the Planck Observatory in 2013 published data on the composition of the observed universe is made up of 4.9% ordinary or baryonic matter 26.8% dark matter and 68.3% dark energy so it's obvious that dark matter and dark energy are the foundation of our universe and now the most intriguing mystery of astrophysics is getting new data in the already familiar galaxy cluster coma of ghost galaxy was discovered consisting of 99.99% dark matter this large formation has about the same mass as our Milky Way but it contains almost no stars take the Milky Way and remove all but one out of every 100 stars it's about the same says lead author of the study peter van dokkum of yale if nothing but these stars were in the galaxy and there was no hidden gravitational mass it would simply be torn and pulled apart by neighboring galaxies after all the Coma Cluster is a volatile environment where many star systems are located very close to each other the mysterious dark twin of the Milky Way is called dragonfly 44 this ghost galaxy was discovered in 2015 using the telescope dragonfly I a team of astronomers led by van dokkum combined 48 telephoto lenses into one massive telescope the invention made it possible to capture much more light and the result turned out to look very much like the giant eye of an insect therefore it was named dragonfly galaxies like dragonfly 44 are so scattered that they would quickly disintegrate if they were not held together by some force it's like dropping a glass of coca-cola into a pool the soda will quickly dissipate in the water and disappear but if you drop something heavy in such as a bowling ball it will not dissolve in the water ultra defuse or scatter galaxies with low stellar density are not uncommon in the universe but all the known ghost galaxies until now are approximately 10,000 times smaller than the massive dragonfly 44 the size of the mysterious dragonfly is indicated by the speed of its stars the speed of stars can tell us the mass of the galaxy the faster they move the greater the mass scientists took measurements with a spectrograph at a 10 meter tank to telescope on mount mount aquella Hawaii surprisingly stars move at speeds far greater than expected from such a dim galaxies co-author Roberto Abraham of the University of Toronto reports he says this means that dragonfly 44 has a huge amount of invisible mass stacy miguel at Case Western University a proponent of the alternative theory of gravity which denies the presence of dark matter was confused by this discovery I don't know what to do with it it's definitely intriguing this is a strange galaxy just imagine what we could see once inside a galaxy say for example some aliens live on a planet in a super diffusive galaxy they wouldn't be able to see a streak of light in the sky similar to the Milky Way which would allow them to see their position within a star formation rare stars flare in their night sky surrounded by a giant dark indistinguishable substance to get to a world with a high concentration of dark matter we would have to travel for a long time to be precise something like 330 million light years but since we are not particles of light it would take us a bit longer to get to dragonfly 44 for example if you were to hitch a ride on the new Horizons probe which studies the vicinity of Pluto you could fly to this dark twin of our galaxy in about six or seven trillion years for those who don't have an interplanetary station at hand but can take their car the drive will take 1.8 quadrillion years and don't even try to imagine this terrible figure with 15 zeros if at the same time you were to scream really loudly as you departed from the earth then the scream would certainly get head of you arriving in just 288 trillion years well if you're the second Duncan MacLeod and you have until eternity at your disposal you could easily walk to the Dragonfly on foot and say hello to the Dark Matter from us in about 55 quadrillion years to tell you the truth it's not at all necessary to spend eternity chasing this darkness mankind already knows many other ghost galaxies smaller but also closer these are Hobbit galaxies ultra dim dwarf galaxies discovered in the vicinity of the Milky Way in 2007 the Keck Observatory discovered eight dwarf satellites in our galaxy and six of them are 99.9 percent dark matter a detailed study of the relative velocities of the individual stars in these galaxies allowed astronomers to suggest that the powerful ultraviolet radiation of giant young stars at one time blew out most of the gas from these mini galaxies which is the building material for stars but it left the dark matter it's believed that in most galaxies including our own there's more dark matter than usual but the hobbit' galaxies and the ghostly dragonfly 44 are truly shocking since they have the highest content of this unknown meanwhile the universe continues to throw surprises at scientists in 2018 astronomer Peter van dokkum discovered the strange small galaxies df2 in which there's no dark matter at all it was followed by the discovery of another similar galaxy DF for the very existence of which undermines the modern theory of the formation of galaxies it's believed that it's dark matter that plays the main role in this process in fact this is the foundation for the formation of gas clouds and stars so astrophysicists got a complicated riddle soon the anomalous structure of dwarf galaxies was refuted by a group of researchers from the Institute of astrophysics of the Canary Islands headed by Ignacio Trujillo the assumption of the absence of dark matter in the df2 galaxy was based on calculations which relied on the distance to the galaxies about 64 million light years a new study showed that the real distance from earth to the mysterious galaxies is much smaller it's only about 42 million light years now nothing unusual is left in the galaxy's parameters the overwhelming mass of matter consists of dark matter van dokkum does not agree with this refutation he plans to conduct observations with the Hubble telescope to establish the distance to the disputed galaxy with an accuracy of five percent therefore it's still unclear whether galaxies without dark matter really exist and if so how they appeared both extremes galaxies that don't have dark matter and those that are almost entirely composed of it could undermine existing ideas about the formation of galaxies but what happens if one could get a glimpse into the secrets of dark matter according to one theory dark matter may actually be a topological defect in space-time what if researching this substance helps us to create a time machine and gain control of previously inaccessible dimensions the universe is full of mysteries our universe is 95% composed of something that we know almost nothing about planets stars galaxies even you and I are just a veil for a huge something that we know nothing about fakes and we still entertain ourselves with the illusion that man who is the world what do you think about this write your thoughts in the comments and share with your friends because perhaps they still don't know about the mysteries of dark galaxies

Channel: Ridddle

Views: 966,863

Rating: 4.8266549 out of 5

Keywords: Dark matter, matter, dark, galaxy, What’s inside, space, sci, science, smart, experiment, Ridddle, ridddle, riddle

Id: NHnE4-A_XZw

Length: 10min 43sec (643 seconds)

Published: Mon Nov 04 2019