A propellant leak was to blame for the upper stage of a Falcon 9 rocket crashing to Earth over Europe last week, SpaceX says.
The Falcon 9 launched on Feb. 1 from California, carrying 22 Starlink internet satellites to low Earth orbit as planned. SpaceX usually de-orbits Falcon 9 upper stages after their deployment work is done, bringing the hardware down in a controlled fashion over unpopulated areas.
