You’re looking at a building block of someone else’s home, said planetary astronomer Karen Meech as the first calibrated images of comet 3I/ATLAS appeared on screens at the Gemini South Observatory.

Matteo Luisi, director of the planetarium and observatory at Westminster College, will present the 2025 Henderson Lecture.

Comet 3I/ATLAS is the third interstellar visitor and continues to be a treasure trove of information about the condition of ...

Astronomers have a new theory about planetary formation, and it revolves around one mysterious concept: interstellar visitors. No, not little green men, but rather deep-space wanderers like the ...

Dr. Matteo Luisi, assistant professor of physics and director of the planetarium and observatory at Westminster College, will present the 2025 Henderson Lecture at 6 p.m. Oct. 15 in the ...

3I/ATLAS is only the third interstellar object ever detected. It poses no threat to Earth. The comet is currently dim, requiring a telescope to see. It will be closest to the sun in late October.

A rare visitor from another star system has been spotted. It's the interstellar comet 3I/ATLAS, and it was detected on July 1 by the NASA-funded Asteroid Terrestrial-impact Last Alert System, or ATLAS ...

CAPE CANAVERAL, Fla. — 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 recently, and ...