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NASA’s Cassini mission detects oxygen on Saturn’s Dione
The spotted atmosphere contains a very thin layer of oxygen ions equivalent to conditions 480 kilometers above Earth.
Scientists say they have discovered a faint oxygen atmosphere around Saturn’s icy moon Dione which is 5 trillion times less dense than the air at Earth’s surface.
Dione’s atmosphere was detected by NASA’s Cassini spacecraft, which has been orbiting Saturn since...
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