Video: Watch SpaceX's Starship SN11 launch in fog "Looks like we've had another exciting test of Starship Number 11," John Insprucker, launch commentator for SpaceX, said during the broadcast. "Starship 11 is not coming back, do not wait for the landing." Elon Musk later wrote that engine 2 of the three Raptor engines on Starship SN11 experienced problems during ascent that only got worse when it reignited for the landing burn. "Something significant happened shortly after landing burn start. Should know what it was once we can examine the bits later today," Musk wrote at the time on Twitter. After the failure of Starship SN11, SpaceX stood down from launches for a time as it worked through several more iterations. Then, a breakthrough. Starship SN15 survives launch and landing SpaceX's Starship SN15 rocket prototype launches on a 10-kilometer test flight from SpaceX's Starbase test site near Boca Chica Village in South Texas on May 5, 2021. (Image credit: SpaceX) On May 5, 2021, SpaceX made a Starship triumph when its Starship SN15 prototype launched and landed safely, and didn't explode afterwards. The test flight, which occurred on the 60th anniversary of the launch of Alan Shepard, the first American in space, showed off all the lessons SpaceX had learned to that point while developing Starship.