From https://solarsystem.nasa.gov/missions/cassini/mission/grand-finale/overview/ https://solarsystem.nasa.gov/missions/cassini/mission/grand-... "Having expen

From https://solarsystem.nasa.gov/missions/cassini/mission/grand-finale/overview/ https://solarsystem.nasa.gov/missions/cassini/mission/grand-... "Having expended almost every bit of the rocket propellant it carried to Saturn, operators deliberately plunged Cassini into the planet to ensure Saturn's moons remain pristine for future exploration"