Massive, ‘Dead’ Galaxy Puzzles Astronomers

Objects in the distant universe appear small and difficult to see – unless they’re sitting behind a cosmic magnifying glass.

That’s exactly the case for MACS 2129-1, a galaxy lensed by a massive foreground galaxy cluster. Using the Hubble Space Telescope, astronomers have managed to catch a glimpse of this unusual object, which appears to be an old, “dead” galaxy that’s already stopped making new stars just a few billion years after the Big Bang. Not only is this galaxy finished with its

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