SpaceX rolled out an upgraded version of its Starship rocket booster in South Texas on Thursday to begin testing, and just a few hours later, something inside it exploded.

SpaceX has confirmed that its third-gen Super Heavy Booster, the first stage of the two-stage Starship system, suffered an explosive gas failure of sorts during testing on Thursday morning.

Following last week’s success of Blue Origin’s first interplanetary launch and its first landing of the New Glenn rocket’s first-stage booster, the company has announced plans to transform the rocket into a more powerful beast. And yes, SpaceX will be paying attention.