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 ...

Images from Cassini's final up-close flyby of Saturn's moon Dione should start arriving in a few days. In the meantime, here's a glimpse of other lunar views the robotic space craft ...

Saturn’s moon Dione is streaked with long bright stripes, and no one knows how they got there.. Planetary scientists first noticed the stripes in pictures taken with NASA’s Cassini spacecraft ...

Saturn's moon Dione, often thought of as a bland, smooth world, may have been geologically active in the past and may still be active now, U.S. astronomers say.

A third Saturn moon may have a subsurface ocean with potential for life, researchers say. Using gravity data from the Cassini probe, researchers at the Royal Observatory of Belgium say Dione joins ...

Dione may not be as famous as Titan or Enceladus, but this Saturnian moon is quietly fascinating. Beneath its icy surface lie strange wispy terrains and ancient scars from unknown forces.

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. For one thing, you wouldn't be able to ...

Saturn's moon, Dione, imaged by NASA's Cassini in Feb 2008. (Credit: NASA) We recently explored Saturn’s walnut-shaped moon, Iapetus, to include its two-toned surface features and equatorial ridge.

(Space.com) 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. For one thing, you wouldn't be ...

As the spacecraft nears the end of its life, it probes the secrets of Saturn's icy moon Dione for a final time.

Enhanced-colour view of the Dione moon. NASA said this view exposes tectonic faults and craters on Dione, an icy world it says has undoubtedly experienced geologic activity since its formation.