--Astronomers have discovered the farthest star yet, a super-hot, super-bright giant that formed nearly 13 billion years ago at the dawn of the cosmos. But this luminous blue star is long gone, so massive that it almost certainly exploded into bits just a few million years after emerging....
Gravity from clusters of galaxies closer to us — in the foreground — serve as a lens to magnify smaller objects in the background....
There’s a slight chance it could be a black hole, although the observat
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2022-03-30 00:00:00.0