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A galaxy that suddenly stopped forming new stars more than 13 billion years ago has been observed by astronomers. Using the James Webb Space Telescope, astronomers have spotted a 'dead' galaxy when ...

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Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Researchers have ...

Add Yahoo as a preferred source to see more of our stories on Google. This image from the Hubble Space Telescope shows UGC 2885, also known as Rubin’s galaxy, which is one of the largest known spiral ...

A team of astronomers and astrophysicists at the Chinese Academy of Science's National Astronomical Observatories has found evidence suggesting that a "gas clump" in a fast-moving cloud in the ...

To dark matter and dark energy, add dark galaxies — collections of stars so sparse and faint that they are all but invisible. An artist’s depiction of hydrogen gas observed in the galaxy J0613+52, ...