Starship, spacecraft being developed by the American corporation SpaceX.
Starship, with the Super Heavy launch vehicle, is the successor to SpaceX’s previous rockets: the Falcon 1, the Falcon 9, and the Falcon Heavy. The Super Heavy first stage would be capable of lifting 100,000 kg (220,000 pounds) to low Earth orbit, making it the most powerful rocket ever. The payload would be Starship, a large spacecraft designed for several purposes, including providing fast transportation between cities on Earth and enabling the building of bases on the Moon and Mars. Both Starship and Super Heavy would be fully reusable, making it the first such system. The combined Super Heavy–Starship system is the tallest rocket ever, reaching a height of 120 meters (394 feet).
Starship has two planned configurations, one for carrying cargo and one for carrying astronauts. In the cargo configuration, the payload fairing would be 9 meters (30 feet) across at its widest point and could carry payloads up to 22 meters (72 feet) high, which would give Starship the largest payload volume of any launch vehicle. (Starship would be able to carry space telescopes even larger than the James Webb Space Telescope, which had to launch folded up because of its size.) The crew configuration is planned to carry up to 100 astronauts. SpaceX plans to launch Starship from two sites: the John F. Kennedy Space Center at Cape Canaveral, Florida, and its own site at Boca Chica, Texas.
SpaceX began tests on Starship at Boca Chica in 2019, using a small low-altitude prototype, Starhopper. The tests culminated in a flight that August in which Starhopper rose to an altitude of 150 meters (500 feet) and moved sideways to touch down at a separate landing pad. Tests on full-size Starship prototypes began in 2020 with two low-altitude flights like that of Starhopper. Four Starship prototypes exploded before, during, or just after landing. In the first completely successful test, in May 2021, Starship SN15 flew to an altitude of 10 km (6 miles) before returning to Earth for a soft landing.
The first attempted orbital test flight, launched in April 2023, ended a few minutes after liftoff when Starship failed to separate from Super Heavy and experienced, as SpaceX phrased it, a “rapid unscheduled disassembly.” Had the flight been successful, the Super Heavy booster would have returned to Earth in the Gulf of Mexico, while the uncrewed Starship would have made one partial orbit and splashed down near the Hawaiian island of Kauai. On the second flight, in November 2023, the Super Heavy booster exploded shortly after separation from Starship, which then exploded in turn. The third test flight, in March 2024, was more successful. Starship separated successfully from the Super Heavy booster and reached space but broke up during reentry.
SpaceX plans to use Starship for a flight around the Moon carrying Japanese businessman Maezawa Yusaku and several artists. As part of the Artemis III mission, planned for 2026, two astronauts would transfer to a SpaceX Starship waiting in lunar orbit, and the spacecraft would carry them to the lunar surface. Those astronauts, who would be the first humans on the Moon since the end of the Apollo program in 1972, would spend almost a week in the Moon’s south polar region, where frozen water possibly exists in permanently shadowed craters. A Starship would also land on the Moon as part of the Artemis IV mission. SpaceX founder Elon Musk’s ultimate plans for Starship are to launch settlers to Mars to build a city there, which he estimates would require one million tons of material, or 1,000 Starship flights.