In January 1610, Galileo Galilei, using a newly improved telescope with 20x magnification, observed four celestial bodies orbiting Jupiter, initially appearing as stars. These bodies, later named Io, ...

A group of astronomers from the Carnagie Institution for Science announced on Monday that they discovered 12 previously undiscovered moons orbiting Jupiter, including one the institution is calling an ...

Through a vast ocean, Jupiter's moon Europa is an exciting target for research in the search for life. Two space probes are ...

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 ...

NASA's Europa Clipper probe will study Jupiter's moon Europa, which is thought to have an underground ocean and a potentially habitable environment NBC Universal, Inc. For decades, an icy moon of ...

ESA's Mars Express orbiter captured footage of the Mars' moon Deimos pass in front of Ganymede, Europa, Jupiter, Io and ...

On 9, Jupiter will appear near the Moon in the night sky, offering stargazers a stunning view and chance to observe Jupiter’s moons.

What if Earth had all of Jupiter’s moons? Explore the massive gravitational and environmental changes from an influx of moons.

Skywatchers on Thursday evening, Feb. 6, will notice an eye-catching pairing-off between two of the brightest objects in the nighttime sky. The moon, nearly two nights past first quarter and appearing ...