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 ...

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 ...

The closest ever approach to Dione was in 2011, when the US, European and Italian space agency mission swept just 100km above the moon. Dione has a diameter of 1,122km, making it the fourth ...

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 ...

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.

(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 ...

Cassini captures Saturn and its moons 31 photos. Scientists are getting one of their best looks at Saturn's moon Dione, when NASA's Cassini spacecraft flies past this icy satellite on Monday ...

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.

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