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.

A dozen new moons have been found orbiting Jupiter, including 11 normal moons and one “oddball” moon, according to Carnegie Institution for Science. The new discovery brings Jupiter’s total number of ...

Europa is the fourth largest of Jupiter's 95 moons and about 90% the size of Earth’s Moon. Its surface, covered in water ice, reflects five and a half times more sunlight, making it much brighter.

A NASA spacecraft is ready to set sail for Jupiter and its moon Europa, one of the best bets for finding life beyond Earth. Europa Clipper will peer beneath the moon’s icy crust where an ocean is ...

Your name could make it to the moon along with NASA’s Artemis II mission next year—the first time a crew will travel to Earth ...

The bright stars Castor and Pollux will be positioned to the left of the moon in the early morning hours of Aug. 19. Mercury, ...

The hellish surface of a moon of Jupiter known as Io is riddled with hundreds of lava-spewing volcanoes that make the world one of chaos and violence. The brutal conditions also make Io intriguing to ...

NASA's Europa Clipper spacecraft is set to explore Jupiter's moon Europa, one of the prime candidates for finding life beyond Earth. Europa Clipper will assess whether Europa's conditions, such as its ...

A NASA spacecraft is ready to set sail for Jupiter and its moon Europa, one of the best bets for finding life beyond Earth. The craft named Europa Clipper will peer beneath the moon's icy crust and ...

CAPE CANAVERAL, Fla — A NASA spacecraft is ready to set sail for Jupiter and its moon Europa, one of the best bets for finding life beyond Earth. Europa Clipper will peer beneath the moon’s icy crust ...