
The Cassini spacecraft was deliberately flown into Saturn in 2017 because its fuel was running low and engineers refused to risk it drifting into Enceladus, a moon with a subsurface ocean, and the final 22 orbits were designed to thread a 1,500-mile gap between Saturn and its innermost ring that no spacecraft had ever attempted.
On September 15, 2017, NASA deliberately destroyed the Cassini spacecraft by flying it into Saturn at 76,000 mph. Engineers chose a fiery end to prevent any chance the dying orbiter could one day drift into Enceladus, the tiny moon whose subsurface ocean Cassini itself had discovered.














