On Wednesday, Nov. 19, NASA will unveil more 3I/ATLAS images captured by the space agency's fleet of instruments both on the ground and up in space.

In July 2025, astronomers detected the third known interstellar object ever observed passing through our solar system—an ...

Add Yahoo as a preferred source to see more of our stories on Google. An interstellar comet that blazed past the sun and swung by Earth last year could be nearly three times older than our solar ...

Add Yahoo as a preferred source to see more of our stories on Google. NASA's James Webb Space Telescope is finding clues that are leading scientists closer to understanding the origins of the ...

Twelve NASA missions have captured detailed views of comet 3I/ATLAS, the third known interstellar visitor, as it travels ...

There Was Something Unusual About Them. Find Out What.

Comet 3I/ATLAS may have ended its journey through the solar system, but not before the Webb space telescope got one last glimpse of the rare interstellar visitor on its way out. Webb’s detailed ...

One year ago, on July 1, 2025, astronomers discovered a fascinating new object moving through the solar system. Detected by the Asteroid Terrestrial-impact Last Alert System (ATLAS), the object was ...

Last year, an interstellar traveler entered our solar system. Some speculated that it was an alien spacecraft, but it turned out to be a comet, 3I/Atlas, and it provoked interest from astronomers and ...

Interstellar comet 3I/ATLAS, which passed through the solar system in 2025, seems to have come from a chemically primitive region of the early Milky Way, according to James Webb Space Telescope ...

CAPE CANAVERAL, Fla. (AP) — The group leading the charge in the search for extraterrestrial life has given the all clear: An interstellar comet looks to be completely natural and free of any alien ...

An interstellar comet that blazed past the sun and swung by Earth last year could be nearly three times older than our solar system and is unlike anything ever before seen in our cosmic backyard, ...