SpaceX scrubs Starship launch after some of its engines didn't start

SpaceX called off a test flight of its powerful Starship rocket and Super Heavy booster as the countdown clock reached zero Thursday at the company's spaceport in South Texas. The launch team at Starbase, Texas, just north of the US-Mexico border, aimed to launch the more than 400-foot-tall rocket at 5:45 pm local time (6:45 pm EDT; 22:45 UTC). 5 million pounds of liquid methane and liquid oxygen into the two-stage rocket.

But the computers controlling the countdown called an abort during the Super Heavy booster's engine startup sequence. SpaceX scrubbed the launch attempt, and engineers began preparations to drain the rocket's propellant tanks. Officials did not immediately announce when they plan to try to launch again.