SpaceX CEO Elon Musk on Saturday said that the rocket manufacturing company will be building a space station on Mars and Moon. What Happened: Musk plans to build a self-sustaining city on Mars by delivering sufficient payload to the planet with its Starship launch vehicle. In 2023, Musk said that he hopes to reach Mars by 2033 and develop a thriving base on Mars in 15 years. In fact, Musk has previously even voiced his dreams of dying on Mars. Responding to a question on whether SpaceX would consider building a space station, Musk on Friday replied, “Mars (and the moon).” Why It Matters: Space…