Ganymede is the largest moon in the solar system — but getting there is brutally hard. The journey requires massive amounts ...

NASA shared a sharp new image of Ganymede, Jupiter’s largest moon (Image: NASA/JPL-Caltech/SwRI/MSSS) NASA has released a striking image from a recent Ganymede ...

The waning moon shines close to the king of the planets on Dec. 7. Don't miss Jupiter shining close to the waning gibbous ...

Witness the celestial spectacle of Jupiter shining brightly near the waning gibbous moon in the Gemini constellation on ...

A clear night often pulls our eyes skyward. Many wonder what worlds shine beyond our own Moon. Scientists now highlight eight stunning moons that reshape our view of the Solar System. Each moon holds ...

Looking for a sky event this week? Check out our full Sky This Week column. November 30: Watch Titan reappear Jupiter is the ...

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

One of the most intriguing events of the month is the perihelion — or closest approach to Earth — of Comet 3I/ATLAS on December 19. This isn't just any comet; it's the third confirmed interstellar ...

This week sees the Moon and Jupiter make for a nice pairing in the chilly December evening sky and also the start of the Geminids meteor shower, ...

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Previous claims of exomoon discoveries haven’t stood up well to replication, but perhaps a new method will have more success.