SpaceX aims to put Starship in orbit for the first time. WASHINGTON, United States: Three years after its first test flight, SpaceX’s Starship rocket will attempt Monday to enter Earth’s orbit, a key step in the development of the massive launch vehicle designed for future missions to the Moon and Mars. On the heels of its high-profile initial public offering in June, Elon Musk’s SpaceX plans to shift into high gear with a 14th test.