SpaceX, owned by American billionaire Elon Musk, launched the eleventh flight of the Starship vehicle from the Starbase facility in Texas on Monday in a test mission aimed at evaluating the reusable spacecraft’s capability to deploy satellites and eventually transport humans to the Moon and Mars.

(Watch the Starship launch and successful sea landing test)

The spacecraft consists of the upper stage Starship mounted atop the Super Heavy booster, and it lifted off around 23:20 GMT from SpaceX facilities at Starbase.

After sending the upper Starship stage into space, the Super Heavy booster returned for a smooth landing in the Gulf of Mexico about 10 minutes after liftoff.

Gwynne Shotwell, SpaceX president, said at a conference in Paris last month, “We did everything we could think of to make the eleventh test flight successful… but, as you know, no one knows what might happen, so we’ll see.”

Starship is scheduled to carry NASA astronauts to the Moon by 2027.

This rocket is essential for launching the larger Starlink satellites, which play a vital role in SpaceX’s goals for broadband mobile internet, a key part of Musk’s vision to send humans and cargo to Mars.