Rigs_and_VesselsSemisub deep-water rigs set for new life as launchpads for Musk's SpaceXTwo ultra-deepwater rigs find new life supporting SpaceX Starship projectSpaceX launches its first super heavy-lift Starship SN8 rocket during a test from their facility in Boca Chica, TexasPhoto: REUTERS/SCANPIXJennifer Lynn PresleyHouston