Saturn: South in Shadow (by NASA)
Saturn’s moon Enceladus appears to be cloaked in drifts of powdery snow around 330 feet (100 meters).
Scientists estimate that Enceladus’s low gravity—about one percent that of Earth—allows some of the ice emitted by the polar geysers to jet into space rather than falling back to the moon’s surface.
by Nasa
Saturn’s icy moon Dione has an atmosphere, albeit a thin one, astronomers have discovered.
Image courtesy SSI/NASA
(Fonte: National Geographic)
Ring Around the Ringed Planet
Image courtesy Caltech/SSI/NASA
Like a dog chasing its tail, a giant storm on Saturn encircles the ringed planet in a picture taken by NASA’s Cassini orbiter on February 25 and released July 6.
Cassini detected lightning strikes emitting radio waves about 10,000 times more powerful than those from Earth lightning, according to a new study in the journal Nature—likely due in part to the fact that Saturn, for reasons unknown, saves its electrical energy for decades before releasing it in massive storms.
(Fonte: National Geographic)
