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 ...

NASA said the comet will make its closest approach to the sun in late October, scooting between the orbits of Mars and Earth ...

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

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

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

Israeli Prime Minister Benjamin Netanyahu and U.S. President Donald Trump might look to take a victory lap on Monday after ...

ScientiFix, our weekly feature, offers you a summary of the top global science stories of the week, with links to their ...

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 budget proposes the end of the Space Launch System rocket and Orion capsule after the Artemis III moon-landing mission.