Saturn’s moon Dione is streaked with long bright stripes, and no one knows how they got there. “They’re just really bizarre,” say study coauthor and planetary scientist Emily Martin of the ...

Gravity-science data from the flyby should help scientists to work out more about Dione’s internal structure. And this was Cassini’s chance to turn its cameras and spectrometers on the north ...

Saturn’s moon Dione has joined the growing list of watery bodies in our solar system. Data from NASA’s Cassini probe indicate that a liquid ocean some 20 miles deep exists far below the icy ...

Dione is the fourth-largest moon of Saturn, with a diameter of 698 miles (1,123 kilometers). It is the 15th largest moon in the solar system. Dione orbits around Saturn once every 2.7 Earth-days ...

A subsurface ocean lies deep within Saturn's moon Dione, according to new data from the Cassini mission to Saturn. Two other moons of Saturn, Titan and Enceladus, are already known to hide global ...

Now, a group of scientists has announced that Saturn's moon Dione may also have a subsurface ocean. Their results are published in the journal Geophysical Review Letters. Back in 2014, scientists ...

This story was updated at 10 p.m. ET. A NASA spacecraft circling Saturn has discovered a wispy oxygen atmosphere on the ringed planet's icy moon Dione, but you wouldn't want to live there.