. Between them, they racked up over 1,200 hours of observing time, peering into the Cosmic Dawn to search for light in the early Universe.of the University of Tokyo in Japan."HD1's red color matched the expected characteristics of a galaxy 13.5 billion light-years away surprisingly well, giving me a little bit of goosebumps when I found it."
Because the Universe is expanding, other galaxies appear to be redshifted; the greater the distance away in space-time, the greater the redshift. This effect allows astronomers to calculate how far light has traveled to reach us. The number was incredibly high, over 100 stars a year. That's 10 times higher than expected for a galaxy in the early Universe. This tension could be resolved, however, if the stars being born were not the same as the stars we see being born today.
That size seriously challenges supermassive black hole growth models. It's very chonky, very early in the Universe.
who really cares ?!!!!
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