Favorite tweets

Group Photo: from top to bottom, Saturn's moons Tethys, Enceladus and Mimas https://t.co/rrXsxPy0RK http://pic.twitter.com/vL1ASoWrMj

— CassiniSaturn (@CassiniSaturn) February 22, 2016

via Twitter https://twitter.com/CassiniSaturn

February 22, 2016 at 09:06PM