SpaceX plans to launch its powerful Starship rocket tonight for a test flight lasting about an hour. A live webcast is expected to begin 30 minutes before liftoff, though launch timing may change.
This is the fourth Starship flight of 2025. The last three tests all ended in failure. SpaceX hopes this one will succeed.
The rocket has been updated since its last flight in May. Engineers fixed a part called the fuel diffuser, which may have caused a pressure problem in the nose cone.
The uncrewed rocket will follow a similar path as before and try to complete tasks missed in earlier missions.
NASA plans to use Starship to land astronauts on the moon in 2027. SpaceX also wants to send humans to Mars, but first it must prove the rocket works.
