Ocean Worlds – Spaceflight Now

June 3, 2026

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[ June 3, 2026 ] Live coverage: SpaceX to launch 24 Starlink satellites on Falcon 9 rocket from Vandenberg Falcon 9
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New discoveries raise prospects for life on moons of Jupiter and Saturn

April 13, 2017 Stephen Clark

Scientists announced Thursday that measurements from NASA’s Cassini spacecraft detected hydrogen gas, a key energy source for microbial life, in a plume gushing from a vast liquid water ocean buried beneath the icy shell of Saturn’s moon Enceladus.

Study suggests Saturn’s moon Dione has underground ocean

October 11, 2016 Stephen Clark

Scientists crunching data from NASA’s Cassini spacecraft believe Saturn’s moon Dione has a liquid ocean buried 60 miles under a thick icy shell, potentially adding to a growing list of ocean worlds in the frigid outer solar system.