NASA's Juno probe has flown closer to Jupiter and its largest moon, Ganymede, than any other spacecraft in more than two decades — and the images it beamed back of the gas giant and its icy orb are ...

NASA’s Kepler space telescopespotted thousands of worlds during its four-year mission, proving that our galaxy is filled with planets. But even more surprising is what the Kepler database highlights ...

If star-hopping aliens ever visited our solar system, Saturn is probably the planet they'd remember. The seven giant rings circling its equator make Saturn the most distinct planet orbiting the sun.

A dazzling new animation captures the life cycle of a solar flare in 3D, using vivid colors to represent the varying temperatures in the fiery eruption. The intriguing animated snapshot shows the ...