Photo: SpaceX
SpaceX is showing off the world's tallest rocket after assembling its Starship prototype rocket on top of the Super Heavy booster for the first time. The private company is preparing for its first orbital test flight of the two-stage Starship system, a spacecraft Elon Musk wants to travel to the moon and Mars. The Starship section of the rocket stands around 160 feet tall and lifts off on top of the Super Heavy booster, which is 230 feet high. Musk tweeted, "Starship fully stacked," along with several pictures of the rocket on the launchpad in Boca Chica, Texas.