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 ...

The bright streaks of Dione's wispy terrain are seen near the moon's limb at right while the medium-sized crater Turnus (63 miles wide) is visible along Dione's terminator. The Dione picture is ...

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.

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 ...

Saturn’s moon Dione appears to be getting its tiger on. The world is decorated with long, bright stripes, according to a new study, something astronomers say is unlike anything else they’ve ...

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 ...

Here’s how it works. The icy Saturn moon Dione appears to have an underground ocean of liquid water, just like two of its more famous neighbors, a new study suggests. This huge ocean is probably ...

Officials expect the craft to fly within 295 miles of Dione, performing observations aimed at understanding the moon’s structure and geology. They’re looking for evidence of active geological ...

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 ...

New data from the Cassini spacecraft shows Saturn's moon Dione has a vast ocean 100 kilometers below its icy crust. This discovery is important because where we find water, there's a chance we ...

Dione reveals its past via contrasts in this view from NASA's Cassini spacecraft. (Credit: NASA/JPL-Caltech/Space Science Institute) Saturn's moon Dione has joined the growing list of watery bodies in ...