After three catastrophic in-flight failures in a row, SpaceX readied a huge Super Heavy-Starship rocket for launch Sunday evening from the Texas Gulf Coast to put a variety of upgrades to the test and to deliberately stress the vehicle to learn more about its capabilities.

SpaceX has been known for its risk-tolerant philosophy when it comes to Starship's development. Musk has stressed that rapid and frequent testing, which sometimes leads to explosive ends, can still provide data that helps engineers improve the vehicle's design.

SpaceX's 403-foot Starship rocket was set to launch on Sunday for its tenth test flight, but tech issues got in the way.