The low angle of the sun over a canyon on #Saturn's moon Tethys highlights the contours of this enormous rift https://t.co/PgnrCgpNVZ http://pic.twitter.com/LrAffbTpN3
— CassiniSaturn (@CassiniSaturn) April 24, 2017
via Twitter https://twitter.com/CassiniSaturn
April 24, 2017 at 08:18PM
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