NASA has released stunning new images of interstellar comet 3I/ATLAS, revealing fresh details about its structure, its ...

NASA scientists were baffled after uncovering a rock on Mars that didn’t belong there — with a composition pointing to ...

Interest in Martian life had been spurred by a now infamous announcement from the White House lawn in 1996, when President ...

NASA has revealed a concept for the next generation of flight on the Red Planet, the "Mars Chopper." Credit: Space.com | ...

NASA's Perseverance rover found a peculiar rock on Mars. Its composition suggests it may have originated from beyond our ...

NASA's Perseverance rover discovers shiny metallic rock on Mars that could be a meteorite from an ancient asteroid, ...

The space agency got a close look at the interstellar visitor over the past few months as it zipped by Mars and the sun ...

NASA released images of an interstellar comet flying past Mars, and scientists expressed doubt about the possibility that it ...

NASA confirms hydrogen detection from 3I/Atlas using MAVEN, providing new clues about the interstellar comet’s makeup.

A rock that is described as "unusually shaped" and "not meant to be on the surface of Mars" has nevertheless made its way to ...

While none of the spacecraft have cameras perfectly designed to spot comets zipping by at speeds up to about 153,000 miles per hour (246,000 kilometers per hour), astronomers didn’t want to miss what ...

The unusual comet—which is to pass Earth again in the coming weeks—is only the third known object to visit us from outside ...