At roughly 250,000 kilometers per hour, comet 3I/ATLAS did not merely pass through the inner solar system it tore through it, ...

Astronomers are rolling out a welcome mat for a newly identified visitor from beyond our solar system. The object — thought to be a comet — is only the third-ever confirmed interstellar visitor to ...

Despite some similarities and speculation, the new comet likely originated from our solar system's Oort Cloud and is not directly connected to 3I/ATLAS. The comet will make its closest approach to ...

The first JWST survey of 3I/ATLAS revealed more of the comet’s surprising characteristics, helping astronomers gain a clearer picture of where it came from. Reading time 2 minutes Ever since ...

Interstellar comet 3I/ATLAS made its closest approach to Earth on Friday, Dec. 19. The comet will pass within about 170 million miles of our planet and poses no danger. While not visible to the naked ...

NASA has discovered an interstellar comet that's wandered into our backyard. The space agency spotted the quick-moving object with the Atlas telescope in Chile earlier this week, and confirmed it was ...

An interstellar comet that originated outside our solar system just made its closest pass of the sun, setting it on an outgoing path — but it’s not leaving our cosmic neighborhood yet. The comet, ...

Though this hunt came up empty, the fact that 3I/ATLAS is only the third known object found in the solar system after ...

Analyses of its emissions using NASA’s Neil Gehrels Swift Observatory indicate that the interstellar comet probably has a very different structure than comets in the solar system. Hydroxyl compounds ...

I/ATLAS may have moved away from Earth as it makes its way out of the solar system, but this interstellar intruder continues ...