SpaceX’s Starship has exploded once again — adding to a growing list of setbacks for the company’s rocket.
The upper stage of the rocket, the largest ever built, was undergoing routine testing to prepare for its 10th test flight at SpaceX’s South Texas Starbase site on Wednesday night (June 18) when it “suffered a catastrophic failure and exploded,” local authorities wrote on Facebook.
The gigantic fireball adds to a string of recent headaches for the rocket’s upper stages. The ship exploded mid-flight during two previous test flights in January and March, and fell to pieces during an earlier-than-planned reentry in May.
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In a post on X, SpaceX has attributed the latest explosion to “a major anomaly while on a test stand at Starbase,” yet the exact cause of the malfunction is unclear.
“A safety clear area around the site was maintained throughout the operation and all personnel are safe and accounted for,” SpaceX added in the post. “Our Starbase team is actively working to safe the test site and the immediate surrounding area in conjunction with local officials. There are no hazards to residents in surrounding communities, and we ask that individuals do not attempt to approach the area while safing [sic] operations continue.”
Starship is key to SpaceX majority shareholder Elon Musk’s ambitions to transport spacecraft, crew members, satellites and cargo into orbit around Earth and to the moon and Mars.
Related: ‘Catastrophic’ SpaceX Starship explosion tore a hole in the atmosphere last year in 1st-of-its-kind event, Russian scientists reveal
Standing 403 feet (123 meters) tall and propelled by a record-breaking 16.5 million pounds (7.5 million kilograms) of thrust from its 33-engine Super Heavy booster rocket, Starship can carry 10 times the payload of SpaceX’s current Falcon 9 rockets.
Designed primarily with affordable and efficient manufacturing in mind, the gargantuan rocket uses inexpensive stainless steel for its construction and methane — which SpaceX claims can be collected on Mars — to power the rocket.
These early failures are unlikely to deter SpaceX from further developing the rocket. Musk announced in March that he expects the ship to carry Tesla’s Optimus humanoid robots to Mars by the end of 2026, and the rocket is also set to carry some of the Starlab private space station into orbit once the International Space Station retires after 2030.
SpaceX has also won around $4 billion in NASA contracts to develop the Human Landing System (HLS). This is a lunar lander variant of the spacecraft, and has been selected by NASA to carry American astronauts to the moon aboard the 2027 Artemis III mission — the first time humans will have walked on the moon in more than 50 years.
The impact of yesterday’s explosion on SpaceX’s launch date for Starship’s 10th flight is unclear. Currently, the company is investigating what happened to cause Flight 9’s failed reentry alongside the U.S. Federal Aviation Administration.
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