Jupiter's fourth-largest moon is a main character in our search for other life-friendly places in our solar system.

NASA announces a new discovery about the ice-covered water world.

There’s no mistaking Jupiter in the sky these Butler winter evenings, rising in the southeast as evening twilight ends. In ...

Research into Jupiter’s moons shows Io and Europa did not evolve apart but formed with opposite compositions from the beginning.

NASA Juno mission captured amazing new imagery of Jupiter's moon Europa. The spacecraft flew about 219 miles (352 kilometers) ...

February’s night skies hold a certain celestial splendor that only enthusiastic and vigorous skywatchers have the fortitude and good fortune to enjoy.

Jupiter steals the spotlight in January as it reaches its brightest and biggest appearance of the year. The month also features a Moon–Saturn meetup and the steady glow of the Beehive Cluster for ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. Skywatchers keep your eyes ...

"Most excitingly, this new idea addresses one of the longstanding habitability problems on Europa and is a good sign for the ...

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 ...

Jupiter, the giant planet, appeared to align closely with the full Wolf moon, creating a stunning celestial display visible ...