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Interstellar comet 3I/ATLAS shows rare CO₂-rich signature

Could a comet from another star system carry the chemical fingerprints of worlds we’ve never seen? The arrival of 3I/ATLAS ...
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First ever X-ray of 3I/ATLAS reveals 400,000 km glowing ‘alien halo’

In late November 2025, astronomers captured an unprecedented cosmic signature: the first X-ray emissions ever detected from ...

NASA's Hubble sees a stunning planet-forming disk. It's a real doozy.

New images from NASA 's Hubble Space Telescope have revealed an enormous, oddly shaped disk of gas and dust around a single ...

Scientists Say 3I/ATLAS Could Be Older Than the Sun — And Its Star May Be Gone

Scientists studying interstellar comet 3I/ATLAS say it may be older than the Sun and could have formed around a star that no ...

Most sensitive radio observations to date find no evidence of technosignature from 3I/ATLAS

I/ATLAS was first discovered on July 1, 2025, it has garnered much attention, including speculation, hopes and fears that it ...

8 burning theories that could prove 3I/ATLAS is an alien spacecraft, according to Harvard scientist

With 3I/ATLAS streaking away from our planet, speculation remains as to whether the interstellar comet is alien or not.