3I/ATLAS, an interstellar object currently zipping through the solar system, is capturing the attention of astronomers, the ...

This unexpected color raises new questions about the alien chemistry of comets from beyond our solar system. On Sept. 7 2025, ...

Scientists are closely monitoring Comet 3I/ATLAS, an interstellar object. Discovered in July 2025, it's moving at record ...

But over the summer, 3I/ATLAS, has plunged toward the inner solar system—and the fireworks show has begun in earnest. When ...

It could mean two bright comets will be visible in the night sky at the same time, on the peak night of a meteor shower.

The images of Comet 3I/ATLAS were captured by the Gemini South telescope at Cerro Pachón in Chile on Aug. 27 as the icy ...

The month of October is a treat for stargazers, as they’ll be able to see two different comets, one of which is long-tailed, ...

A telescope in Chile recently glimpsed 3I/ATLAS' glowing tail, which observations reveal has grown as the interstellar object cruises toward the sun.

The eyes of every astronomer widened this year when an interstellar traveler was discovered in our solar system.

Astronomers are racing to study 3I/ATLAS, an interstellar comet whose strange behavior reveals new clues about how other ...

On Sept. 11, 1985, the International Cometary Explorer, or "ICE" became the first spacecraft to fly by a comet. Originally ...

Observations from the James Webb Space Telescope reveal unexpectedly high levels of carbon dioxide coming off 3I/ATLAS, ...