Just over a year ago, interstellar comet 3I/ATLAS was discovered. It was seen crossing into the inner Solar System and into ...

Where does the solar system end and interstellar space begin? That's a question scientists have been working to answer using ...

Based on the composition of gases spewed by the icy space rock, researchers estimate that our guest might be up to 12 billion years old—about three times the age of the solar system ...

In the latest research, telescope observations of 3I/ATLAS examine its chemical structure and suggest that it took shape in a ...

Meteor camera networks can reveal the hidden history of the solar system, and you can assist from your own backyard SpaceX’s IPO—the largest in history—has out-of-this-world implications for AI, space ...

Exactly where the comet 3I/ATLAS came from within the Milky Way remains a mystery.

(International Gemini Observatory/NOIRLab/NSF/AURA/Shadow the Scientist; Image Processing: J. Miller & M. Rodriguez ...

While life on Mars (and Venus) has long been an obsession for those wondering if we're alone, there are other places in our ...

On August 12, 2026, lucky viewers in and around Greenland, Iceland and Spain—weather allowing—will be able to see one of ...

Astronomers have used the James Webb Space Telescope (JWST) to observe an oddball gas giant exoplanet orbiting a dead star.

A person standing on the largest volcano in the solar system would never know it. Olympus Mons rises 70,000 feet over Mars on ...

Black holes about the size of a hydrogen atom could be careening through the solar system unnoticed. But their days of stealth may be numbered. Two teams of researchers propose methods to search for ...