After decades of searching, astronomers may have finally stumbled upon the first moon known to exist beyond our solar ...

Using the Webb telescope’s powerful Near Infrared Imager and Slitless Spectrograph (NIRISS) instrument, the team detected a ...

Searching for exomoons—moons that orbit around another planet—was one of the most exciting capabilities expected of the James ...

December's full moon 2025 will be the cold supermoon, set to rise amid the longest nights of the year and start of spectacular Geminids meteor shower.

When an exoplanet passes in front of its star, irregularities in the light curve can betray the presence of dark regions on ...