"We're not saying, and we can't say, that there's no life in Europa. What we're saying is that it's a harder proposition, ...

The giant planet Jupiter has nearly 100 known moons, yet none have captured the interest and imagination of astronomers and ...

Jupiter's moon Europa is on the short list of places in our solar system seen as promising in the search for life beyond ...

On January 7, 1610, the Italian astronomer Galileo discovered three of Jupiter's moons: Callisto, Europa and Io. When he ...

Although Europa is the fourth largest of Jupiter’s 95 moons, it’s the smallest of the Galilean moons – the largest being Ganymede. With an equatorial diameter of about 3,100 kilometres, Europa is ...

After passing Earth, interstellar comet 3I/ATLAS will fly close to Jupiter and its moon Eupheme in March 2026, marking a key moment in its outbound journey ...

Eupheme was discovered in 2003 by Scott S. Sheppard's team at the University of Hawaiʻi using data from Mauna Kea ...

As 2026 unfolds, a rare celestial guest is preparing for its final, dramatic act before vanishing into the deep dark of space ...

A comet from another star system will swing by Mars on Friday as a fleet of spacecraft trains its sights on the interstellar visitor. We already know a decent amount about how planets form, but moon ...

The predawn hours of Aug. 8 present a perfect opportunity to see Jupiter's four largest moons line up next to the "King of the Planets" as it voyages through the stars of the constellation Gemini.

Did you know that Jupiter has 95 moons? And some of them are really big, like planet-sized big. I'm going to populate these ...

Could the icy moons of our solar system hold life beyond our planet? Keith Cooper looks at how planetary scientists plan to find out ...