Elon Musk showed off videos of the first test firing of SpaceX’s Starship Raptor engine in a series of tweets late on Sunday.
SpaceX’s Starship is a rocket the company is designing with the goal of transporting humans and cargo to Mars. SpaceX is currently building a prototype of the rocket at its facility near Brownsville, Texas.
In a tweet, Musk said he was “so proud of great work” by the SpaceX team. Musk is CEO of privately-held SpaceX as well as electric vehicle company Tesla.