SpaceX’s Starship SN9 rocket finally flew from Boca Chica in Texas on Tuesday, reaching an altitude of 10 km (6.2 miles) before pancaking into the ground in a gigantic fireball just like its predecessor, Starship SN8, did back in December. It appeared that one of two rocket engines that were supposed to fire as the rocket reoriented itself for landing failed to ignite. The rocket then plunged into the ground […]