Enlarge / SpaceX's Super Heavy booster, numbered Booster 9, rolls back to its launch pad in Texas for more testing. The rocket now has a new structural staging ring on top. (credit: SpaceX) Welcome to Edition 6.08 of the Rocket Report! The US Department of Justice is taking SpaceX to court over allegations of hiring discrimination, but the government is relying more than ever on SpaceX's technical prowess.