The ocean on Ganymede may have more water than all the water on Earth. In this artist’s concept, the moon Ganymede orbits the giant planet Jupiter. NASA’s Hubble Space Telescope observed aurorae on ...

When searching for the unknown, classic physics wisdom holds that a bigger detector boosts the chances of discovery. A physicist is taking that advice to heart, advancing a bold plan to use none other ...

A new theoretical study proposes a radical idea in the search for dark matter—using the surface of Ganymede, Jupiter’s largest moon, as a natural detector for massive dark matter particles. The ...

Our solar system is a wonder, from the star at the center to the planets and moons in orbit, as seen in these fantastic pictures taken by Hubble, the Solar Dynamics Observatory, and the Mars ...

Our solar system’s largest moon, Ganymede of Jupiter, has never been completely mapped — until now. Scientists led by Wheaton College’s Geoffrey Collins combined data from NASA’s Voyager 1, 2 and ...

Yes, even Jupiter's moons produce auroras. In a landmark observation by a team of international researchers, NASA's Juno spacecraft has, for the first time, clearly detected the auroras of Jupiter's ...

Soaring to the depths of our universe, gallant spacecraft roam the cosmos, snapping images of celestial wonders. Some spacecraft have instruments capable of capturing radio emissions. When scientists ...

When a camera on a spacecraft 370 million miles away malfunctions, NASA can't just send a technician to repair it, so they have to get creative. They recently revealed the details of a repair of the ...