NASA STEREO-A satellite's SECCHI/HI-2 camera captured this imagery of Comet C/2021 A1 (Leonard) Credit: Space.com | footage ...

The newly discovered interstellar visitor is just the third of its kind and fascinates astronomers who hope to learn from it ...

Astronomers are meticulously tracking the new interstellar visitor that is crossing our solar system. Officially designated ...

The space agency spotted the quick-moving object with the Atlas telescope in Chile earlier this week, and confirmed it was a ...

NASA’s ATLAS survey telescope found an interstellar comet, which could be the largest yet, in the direction of the ...

The detection of 3I/ATLAS marks our solar system’s third time saying aloha to an interstellar visitor, following the ...

CAPE CANAVERAL, Fla. (AP) — Astronomers say they've spotted an object in our solar system that's believed to be from another ...

Authorities in Greece imposed mandatory work breaks on Monday in parts of the country where temperatures are expected to ...

Breaking news headlines, stories and live updates on current affairs from across the globe. Complete coverage on the latest ...

Astronomers discovered 3I/ATLAS, a 10–20 km-wide interstellar comet racing into the solar system. It will reach perihelion in ...

The NASA-funded ATLAS telescope in Chile detected interstellar comet 3I/ATLAS on July 1st, originating from Sagittarius. Pre-discovery observations extend back to June 14th, with numerous telescopes ...