1.2 million kilometres from Saturn, the Cassini spacecraft looks across the planet’s rings to the icy moon Tethys. A crescent of Tethys’ daytime side can be seen lit by sunlight; the night side is illuminated by reflected light from Saturn.
Originally published by Cosmos as Tethys by Saturnlight
Cosmos
Curated content from the editorial staff at Cosmos Magazine.
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.