Hubble's latest images of interstellar comet 3I/ATLAS reveal sustained, jet-like eruptions and a carbon dioxide-rich coma ...
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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 ...
Is 3I/ATLAS a natural comet or an alien probe? Harvard's Avi Loeb explores the mystery of its sunward 'anti-tail' and what it ...
A bumpy snailfish, Andean mouse opossum and ancient sea cow were just some of the many species described in 2025.
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