Interstellar comet 3I/ATLAS showed measurable water activity after passing the Sun, observed by SOHO’s SWAN instrument, ...
New analyses from SOHO and the Green Bank Telescope indicate interstellar comet 3I/ATLAS behaved like a normal comet as it ...
The most consequential detail about interstellar comet 3I/ATLAS is not that it is rare, but it is doing things that make long ...
When 3I/ATLAS swept past the sun in late October 2025, it became only the third confirmed visitor from interstellar space ...
Earth has a lot of water. It’s almost like we’re hoarding the stuff for a not so rainy day. All of that water is more or less the defining feature of our planet when seen from a distance, but there’s ...
Measured on its inbound leg, 37 miles per second, 3I/ATLAS was a member of the Solar System already travelling at a speed ...
A shocking new study suggests that the second interstellar object ever discovered, Comet 2I/Borisov, could be carrying water on it from beyond the Solar System. The study suggests that 2I/Borisov, ...
The water that makes up most of our planet’s surface formed in the cold darkness of insterstellar space long before our Sun flared to life, according to a recent study. Around 1,300 light years away, ...