Astronomers discovered a new moon of Uranus and hundreds of moons around Saturn over the past year, and there may be many ...

The newly identified cluster of Kuiper Belt objects lies about 4 billion miles from the Sun, offering fresh clues about how ...

Interstellar object 3I/ATLAS is confirmed as a natural comet from beyond our solar system, posing no threat to Earth despite ...

Hubble images from December 2025 show interstellar object 3I/ATLAS releasing two narrow jets of material as it moves away from the Sun, raising questions about rotation and activity ...

Harvard's Avi Loeb warns that interstellar comet 3I/ATLAS defies standard physics, raising the stakes for planetary defence ...

Learn about the 3I/ATLAS mystery as Harvard's Avi Loeb reveals 'wobbling jets' that could suggest the interstellar visitor is ...

A new anomaly was discovered in 3I/ATLAS. The captured asymmetrical halo in the comet is now sounding planetary defence ...

A single discovery in the outer solar system forced astronomers to confront a problem they couldn’t ignore, ultimately ...

Astronomers discovered a comet originating from outside the solar system this summer. Its name is 3I/ATLAS ("three-eye-Atlas"), which means it's the third interstellar object found in the solar system ...

Claims accusing NASA of hiding details have sparked anger over the 3I/ATLAS space discovery photos. There is an object from ...

Mercury has long baffled astronomers because it defies much of what we know about planet formation. A new space mission ...

From new exoplanetary neighbors and a weakening dark energy to the best evidence for life on Mars and an interstellar comet ...