NASA landed the first humans on the moon 50 years ago, on July 20, 1969. A towering Saturn V rocket helped send the Apollo 11 astronauts there.
SpaceX, the rocket company founded by Elon Musk, is developing Starship: a new launch system to land on the moon and Mars.
SpaceX is working on prototypes of the vehicle, including one called Starhopper, in south Texas.
According to Musk, a completed Starship could be 387 feet tall and 30 feet in diameter. That's significantly larger than a Saturn V...