"Detecting an exomoon would be quite extraordinary, and because of Io, we know that a volcanic exomoon is possible." ...

Whatever is causing it produces about 220,000 pounds of sodium per second. The research suggests a rocky moon circling ...

We’ve got a cosmic mystery on our hands. No one’s ever confirmed the existence of an ‘exomoon,’ which is a moon outside our ...

Hundreds of millions of miles from Earth, orbiting the gas giant Jupiter, there is a moon that scientists believe is home to ...

Moons ought to be scattered throughout the Milky Way galaxy in a glorious profusion. Here in the Solar System, moons ...

New research done at NASA's Jet Propulsion Laboratory reveals potential signs of a rocky, volcanic moon orbiting an exoplanet ...

An illustration of NASA’s Europa Clipper soaring above the surface of Jupiter’s icy moon Europa. The gas giant planet looms in the background. The Europa Clipper was originally scheduled to ...

Catch some shooting stars, get in a glimpse of the fading Comet Tsuchinshan-ATLAS, and see Venus mingle with Antares in the ...

NASA JPL's Europa Clipper spacecraft, the largest planetary probe ever built, will launch as early as Friday to explore ...

Sunrise: 7:10 A.M. Sunset: 6:21 P.M. Moonrise: 5:01 P.M. Moonset: 3:29 A.M. The gas giant Jupiter is again where the action is this morning, as its closest Galilean moon transits the disk with its ...

Journey to Jupiter and Europa with four sci-fi films centered around the Jovian system ahead of NASA's Europa Clipper mission ...

It grew larger thanks to countless collisions between dust particles, asteroids, and other growing planets, including one last giant impact that threw enough rock, gas, and dust into space to form the ...