JWST Discovers Most Distant ‘Dead Galaxy’
- Astronomers using the James Webb Space Telescope (JWST) have discovered RUBIES-UDS-QG-z7, the most distant and massive dead galaxy ever observed, more than 13 billion years after the Big Bang.
- RUBIES-UDS-QG-z7 has already stopped forming stars, challenging previous assumptions that early galaxies were actively star-forming.
- A dead galaxy is one that has ceased creating new stars due to depletion or expulsion of essential gases like hydrogen, often caused by processes like stellar winds or black hole activity.
- The finding suggests that the dense cores of massive ellipticals in the local universe were already in place within a few hundred million years after ....
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