Turn a telescope to the eastern sky in the hours following midnight on Nov. 5 to see two colossal shadows darken the cloud ...

The moon, just hours past its last quarter phase, will rise above the east-northeastern horizon shortly before midnight local time. Shining about 6 degrees to its right will be Jupiter, the largest ...

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 ...

A massive NASA mission to explore if one of Jupiter’s moons could support life launched Monday morning from Florida. The Europa Clipper spacecraft lifted off aboard SpaceX’s Falcon Heavy rocket bound ...

Looking for a sky event this week? Check out our full Sky This Week column. November 3: Venus and Spica, side by side Tonight ...

CAPE CANAVERAL, Fla. (AP) — 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 ...

This illustration provided by NASA depicts the Europa Clipper spacecraft over the moon Europa, with Jupiter at background left. NASA/JPL-Caltech photo via AP CAPE CANAVERAL, Fla. — A NASA spacecraft ...

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.

Io isn’t just another moon, it’s the most volcanically active body in the entire solar system. Orbiting Jupiter, Io is ...

NASA’s James Webb Space Telescope (JWST) has captured an extraordinary and unprecedented sight: a moon-forming disk ...