Jupiter's moon count reaches 95+ official satellites. Explore the history of the Jovian system, from Galileo to the latest NASA discoveries.

While Io, the most volcanically active moon in the solar system, appears completely dry and devoid of water ice, its neighbor Europa is thought to harbor a vast global ocean of liquid water beneath ...

The moon greets Jupiter two days ahead of its full moon phase on Feb. 1.

Add Yahoo as a preferred source to see more of our stories on Google. On January 7, 1610, the Italian astronomer Galileo discovered three of Jupiter's moons: Callisto, Europa and Io. When he looked at ...

What exists beneath the surface of Jupiter's icy moon, Callisto? This is what a recent study accepted by The Planetary Science Journal hopes to address as a team of researchers investigated the ...

A new international study co-led by Aix-Marseille University and Southwest Research Institute (SwRI) reveals that the striking contrast in the water contents of Jupiter’s Galilean moons was ...

Recent scientific breakthroughs include a detailed map of dark matter, a new Galileo satellite launch contract, an updated ...

Sky This Week is brought to you in part by Celestron. Friday, January 23Pluto reaches conjunction with the Sun at 5 A.M. EST.

Europe's space leaders were told to "speed up" security missions and launch the IRIS2 satellite constellation by 2029 at the ...

Europe's space leaders were told to "speed up" security missions and launch the IRIS2 satellite constellation by 2029 at the ...

Eight satellites from five different member states are currently being pooled as part of GOVSATCOM. The Commission hopes this ...

Folks, let’s clear the air. When you hear "EU space industry," you think of bureaucracy, not rockets. And honestly? I can't ...