NASA has released new imagery of the surface of Saturn’s moon Dione taken in visible light with the Cassini spacecraft narrow-angle camera earlier this year.
The imaging shows a bright network of fractures on the moon, which is 1123 kilometres in diameter.
The nature of this terrain was unclear until Cassini showed that they weren’t surface deposits of frost, as some had suspected, but rather a pattern of bright icy cliffs among myriad fractures. One possibility is that this stress pattern may be related to Dione’s orbital evolution and the effect of tidal stresses over time.
The view was acquired at a distance of approximately 110,000 kilometres from Dione.
Cassini yesterday made its last close fly-by of Dione.
Read science facts, not fiction...
There’s never been a more important time to explain the facts, cherish evidence-based knowledge and to showcase the latest scientific, technological and engineering breakthroughs. Cosmos is published by The Royal Institution of Australia, a charity dedicated to connecting people with the world of science. Financial contributions, however big or small, help us provide access to trusted science information at a time when the world needs it most. Please support us by making a donation or purchasing a subscription today.