SpaceX plans to launch the seventh full-scale test flight of its massive Super Heavy booster and Starship rocket Thursday afternoon. It's the first of what might be a dozen or more demonstration flights this year as SpaceX tries new things with the most powerful rocket ever built.

At 403 feet tall, Starship is the biggest launch vehicle ever. It’s made up of two parts: the Starship spacecraft, which is designed to carry crew and cargo into orbit, and the Super Heavy Booster, which comes with 33 SpaceX Raptor engines that help propel Starship into space.

SpaceX is set to launch the seventh test flight of its Starship rocket, which will include a crucial test for how it will deploy satellites.