Astronomers have discovered a rare planetary system that dances to a cosmic rhythm. Located 105 light-years away in the ...

Astronomer Avi Loeb outlines nine "anomalies" that he says support his hypothesis that interstellar object 3I/ATLAS is an ...

Find out what's up in your night sky during November 2025 and how to see it in this Space.com stargazing guide.

Here's where Comet 3I/ATLAS, Lemmon and SWAN are in the Halloween sky.

Although it's smaller than a planet, Chiron could be a natural laboratory for learning about how ring systems form, change, ...

When evaluating possible planets out of the thousands out there, explained Prof. Bean, scientists look for liquid water as a ...