SpaceX pulled off the boldest test flight yet of its enormous Starship rocket on Sunday, catching the returning booster back at the launch pad with mechanical arms.

A jubilant Elon Musk called it “science fiction without the fiction part.”

Towering almost 400 feet, the empty Starship blasted off at sunrise from the southern tip of Texas near the Mexican border. It arced over the Gulf of Mexico like the four Starships before it that ended up being destroyed, either soon after liftoff or while ditching into the sea. The previous one in June had been the most successful until Sunday’s demo, completing its flight without exploding.

This time, Musk, SpaceX’s CEO and founder, upped the challenge for the rocket that he plans to use to send people back to the moon and on to Mars.

At the flight director’s command, the first-stage booster flew back to the launch pad where it had blasted off seven minutes earlier.

— The Associated Press