An object dubbed 3I/ATLAS is only the third interloper from outside the Solar System seen in all of human history.

NASA astronaut Nichole “Vapor" Ayers captured a stunning photo of a rare red sprite bolt above a thunderstorm over the Desert ...

We have discovered two interstellar objects so far, ’Oumuamua and Comet 2I/Borisov. ’Oumuamua had no dust tail and a ...

NASA's newest astrophysics space telescope launched in March on a mission to create an all-sky map of the universe. Now ...

The Vera C. Rubin Observatory released a sneak peak of some of the images it is unveiling, the first set of space images from ...

Two studies fill in gaps about the cosmos’s ordinary matter. One maps it all, even the “missing matter.” The other details one of its hiding spots.

The object gained an official name, C/2025 N1 or 3I/ATLAS, on Wednesday. Moving at a record-setting speed for an interstellar ...

James Webb’s mid-infrared vision has likely captured a frigid, Saturn-mass planet shaping the dusty rings around the nearby ...

The mission aims to collect samples from the near-Earth asteroid 2016 HO3 and explore the main-belt comet 311P.

These are the words of the Hera Space Companion, powered by Azure OpenAI Service. It’s an interactive tool that makes it possible to converse with a space vehicle millions of miles from Earth, check ...