Hubble Space Telescope took a picture of 6 'dead galaxies', after all what happened here?
US space agency NASA's Hubble Space Telescope has discovered 6 'dead' galaxies in region. When the universe was 3 billion years old, cold hydrogen gas was needed to provide stars. At that time the fastest stars were being born, then again the gas of those galaxies ran out. Researchers have taken pictures of those galaxies through gravitational lensing.
Hubble has discovered the galaxies MRG-M1341, MRG-M0138, MRG-M2129, MRG-M0150, MRG-M0454 and MRG-M1423. A galaxy continues to grow and develop as long as stars still form in it, but in these galaxies this process has stopped. during this discovery, Hubble was helped by the Atacama Large Millimeter/submillimeter Array (ALMA) of Chile.
The lead author of the study and prof of Astronomy at the University of Massachusetts, Kate Witcker, has suggested that each one galaxies within the universe at this time in time should be making lots of stars. So what happened to all or any the cold gas in these galaxies so early? Scientists still don't understand how the gas ended 11 billion years ago.
Whittaker says that if the region has heated the gas, the recent gas must still be there. Or it's possible that this gas ran out and will not return to the Galaxy, Or all the gas was finished. More research is required to understand the answers to those questions, but it's less likely that these galaxies are going to be alive again. However, researchers say that galaxies continued to grow even after stars didn't form.