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A huge distant galaxy went from making billions of stars to suddenly stopping. Why?

6 Feb 2020, 14:00 UTC
A huge distant galaxy went from making billions of stars to suddenly stopping. Why? ESO

Astronomers have found a very massive galaxy nearly clear across the Universe. It has something like 300 billion stars in it, so it's actually more stelliferous than even our own Milky Way. Because it's so far away we see it as it was when it was very young, which in turn means it made a lot of stars extremely quickly. That's unusual for a galaxy at that distance but not unprecedented.

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