Ocean Worlds – Spaceflight Now

February 22, 2026

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[ February 21, 2026 ] SpaceX’s most-flown Falcon booster launches on record 33rd flight Falcon 9
[ February 21, 2026 ] NASA’s Artemis 2 rocket hit by new problem expected to bump moonshot into early April Artemis
[ February 20, 2026 ] Falcon 9 launches 25 Starlink satellites after weather delays Falcon 9
[ February 20, 2026 ] Moon mission fueling test concludes with no major problems Artemis
[ February 19, 2026 ] Independent report sharply criticizes NASA management, Boeing for troubled Starliner flight Mission Reports

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.