Musk’s Starship explodes minutes after first test flight’s liftoff

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SpaceX’s next-generation Starship spacecraft exploded minutes after liftoff in an uncrewed test flight from South Texas on Thursday, cutting short a key step in Elon Musk’s development of a rocket vessel to eventually take humans to the moon and Mars.

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The flight test was the first for Starship mounted atop the company’s new Super Heavy rocket, and the first launch ever for that lower-stage booster, which SpaceX has touted as the most powerful launch vehicle on Earth.

Even though the two-stage rocket ship failed to make it beyond an altitude of 23 miles (37 km) - less than halfway to the edge of space - the flight achieved a primary objective of getting the new spacecraft off the ground in an otherwise seemingly clean liftoff.

While SpaceX officials were heartened by the outcome, the mission fell short of reaching several objectives.

The plan was for Starship to soar into space at least 90 some miles (150 km) above Earth before it would re-enter the atmosphere and plunge into the Pacific near Hawaii. But the explosion cut the mission short.

Musk, SpaceX’s founder, chief executive, and chief engineer, had appeared eager to temper expectations in remarks made Sunday that downplayed the odds of a successful first flight. SpaceX President Gwynne Shotwell told a conference in February that the “the real goal is to not blow up the launch pad.”

By that measure, the debut flight of Starship with its booster rocket represented a milestone in SpaceX’s ambition of sending astronauts back to the moon and ultimately to Mars, as a major partner in Artemis, NASA’s newly inaugurated human spaceflight program.

NASA chief Bill Nelson congratulated SpaceX on Twitter, saying, “every great achievement throughout history has demanded some level of calculated risk, because with great risk comes great reward.”

Launch, then fiery ‘disassembly’

The two-stage rocket ship, standing taller than the Statue of Liberty at 394 feet (120 meters), blasted off from the company’s Starbase spaceport on the southern tip of Texas along the Gulf Coast east of Brownsville. SpaceX hoped, at best, to pull off a 90-minute debut flight into space but just shy of Earth orbit.

A live SpaceX webcast showed the rocket ship rising from the launch tower into the morning sky as the Super Heavy’s Raptor engines roared to life in a ball of flame and billowing clouds of exhaust and water vapor.

But less than four minutes into the flight, the upper-stage Starship failed to separate as designed from the lower-stage Super Heavy, and the combined vehicle was seen tumbling end over end before blowing apart.

The spacecraft reached a peak altitude of 23 miles (37 km) before its fiery disintegration, which SpaceX described in a live tweet as “a rapid unscheduled disassembly before stage separation.” The company also noted that the rocket reached the critical launch point of maximum aerodynamic pressure before appearing to lose control.

It was not immediately clear whether the explosion was caused by the spacecraft’s automated flight-termination system, which is triggered onboard when the rocket begins to show signs of failure.

Nevertheless, SpaceX officials on the webcast hailed the liftoff as a welcome accomplishment.

A throng of SpaceX workers shown during the webcast watching a livestream together at the company’s headquarters near Los Angeles cheered wildly as the rocket cleared the launch tower - and again when it blew up.

‘Learned a lot’

Musk, shown seated in the Starbase mission control room in Boca Chica, Texas, wearing a headset, said on Twitter afterwards that the next Starship test launch would be in a few months.

“Congrats @SpaceX team on an exciting test launch of Starship! Learned a lot for next test launch,” he tweeted. Musk, who purchased Twitter last year for $44 billion, is also CEO of electric carmaker Tesla Inc.

SpaceX principal integration engineer John Insprucker, one of the webcast commentators, said the experience would provide a wealth of data to inform further flight tests.

Webcast host and fellow SpaceX engineer Kate Tice said it appeared that three of the Super Heavy’s 33 raptor engines “were out” during liftoff, but that could not be immediately confirmed.

The road to Thursday’s accident has not been without previous tests and setbacks.

A stationary test firing of the Super Heavy while bolted to a platform managed to ignite just 31 Raptor engines in February, and an earlier static firing test in July 2022 ended with the vehicle’s engine section exploding.

Before that, SpaceX had test-launched prototypes of Starship’s top half in five short flights to an altitude of 6 miles (9.7 km), seeking to perfect its return landing capability. All but one crashed in flames.

The spectacular nature of Thursday’s loss of the first fully integrated Starship-and-booster vehicle during its introductory launch further highlighted challenges SpaceX faces moving beyond its workhorse Falcon 9 rocket, the centerpiece of the company’s satellite launch business.

Still even a textbook test flight would have by design ended with crash landings of both portions of the spacecraft at sea.

The Super Heavy and Starship were each designed as reusable components, capable of flying back to Earth for soft landings in a maneuver that has become routine in dozens of missions for SpaceX Falcon 9 rockets.

For Thursday’s launch, however, the flight plan called for the lower stage to fall into the Gulf of Mexico after separating from the upper stage, which would have come down in the Pacific Ocean near Hawaii after achieving nearly one full Earth orbit.

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