SpaceX's latest Starship test flight ends with another explosion

Nearly two months after an explosion sent flaming debris raining down on the Turks and Caicos, SpaceX launched another mammoth Starship rocket on Thursday, but lost contact minutes into the test flight as the spacecraft came tumbling down and broke apart.

This time, wreckage from the latest explosion was seen streaming from the skies over Florida. It was not immediately known whether the spacecraft's self-destruct system had kicked in to blow it up.

The 403-foot (123-meter) rocket blasted off from Texas. SpaceX caught the first-stage booster back at the pad with giant mechanical arms, but engines on the spacecraft on top started shutting down as it streaked eastward for what was supposed to be a controlled entry over the Indian Ocean, half a world away. Contact was lost less than 10 minutes into the flight as the spacecraft went into an out-of-control spin.

Starship reached nearly 90 miles (150 kilometers) in altitude before trouble struck and before four mock satellites could be deployed. It was not immediately clear where it came down, but images of flaming debris were captured from Florida, including near Cape Canaveral, and posted online.

The space-skimming flight was supposed to last an hour. The Federal Aviation Administration said it would require SpaceX to investigate the accident.

“Unfortunately this happened last time too, so we have some practice at this now,” SpaceX flight commentator Dan Huot said from the launch site.

SpaceX later confirmed that the spacecraft experienced “a rapid unscheduled disassembly" during the ascent engine firing and said it alerted safety officials.

Flights were briefly grounded at Orlando International Airport “due to space launch debris in the area,” the airport posted on X.

Starship didn't make it quite as high or as far as last time.

NASA has booked Starship to land its astronauts on the moon later this decade. SpaceX’s Elon Musk is aiming for Mars with Starship, the world’s biggest and most powerful rocket.

Like last time, Starship had mock satellites to release once the craft reached space on this eighth test flight as a practice for future missions. They resembled SpaceX’s Starlink internet satellites, thousands of which currently orbit Earth, and were meant to fall back down following their brief taste of space.

Starship’s flaps, computers and fuel system were redesigned in preparation for the next big step: returning the spacecraft to the launch site just like the booster.

During the last demo, SpaceX captured the booster at the launch pad, but the spacecraft blew up several minutes later over the Atlantic. No injuries or major damage were reported.

According to an investigation that remains ongoing, leaking fuel triggered a series of fires that shut down the spacecraft’s engines. The on-board self-destruct system kicked in as planned.

SpaceX said it made several improvements to the spacecraft following the accident, and the Federal Aviation Administration recently cleared Starship once more for launch.

Starships soar out of the southernmost tip of Texas near the Mexican border. SpaceX is building another Starship complex at Cape Canaveral, home to the company’s smaller Falcon rockets that ferry astronauts and satellites to orbit.

The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute’s Science and Educational Media Group and the Robert Wood Johnson Foundation. The AP is solely responsible for all content.

The booster of SpaceX's mega rocket Starship is recaptured during a test flight from Starbase in Boca Chica, Texas, Thursday, March 6, 2025. (AP Photo/Eric Gay)

The booster of SpaceX's mega rocket Starship is recaptured during a test flight from Starbase in Boca Chica, Texas, Thursday, March 6, 2025. (AP Photo/Eric Gay)

SpaceX's mega rocket Starship lifts off for a test flight from Starbase in Boca Chica, Texas, Thursday, March 6, 2025. (AP Photo/Eric Gay)

SpaceX's mega rocket Starship makes a test flight from Starbase in Boca Chica, Texas, Thursday, March 6, 2025. (AP Photo/Eric Gay)

The booster of SpaceX's mega rocket Starship is recaptured during a test flight from Starbase in Boca Chica, Texas, Thursday, March 6, 2025. (AP Photo/Eric Gay)

SpaceX's mega rocket Starship lifts off for a test flight from Starbase in Boca Chica, Texas, Thursday, March 6, 2025. (AP Photo/Eric Gay)

SpaceX's mega rocket Starship makes a test flight from Starbase in Boca Chica, Texas, Thursday, March 6, 2025. (AP Photo/Eric Gay)

The booster of SpaceX's mega rocket Starship is recaptured during a test flight from Starbase in Boca Chica, Texas, Thursday, March 6, 2025. (AP Photo/Eric Gay)

SpaceX's mega rocket Starship lifts off for a test flight from Starbase in Boca Chica, Texas, Thursday, March 6, 2025. (AP Photo/Eric Gay)

SpaceX's mega rocket Starship makes a test flight from Starbase in Boca Chica, Texas, Thursday, March 6, 2025. (AP Photo/Eric Gay)

SpaceX's mega rocket Starship is prepared for a test flight in stiff winds from Starbase in Boca Chica, Texas, Thursday, March 6, 2025. (AP Photo/Eric Gay)

SpaceX's mega rocket Starship is prepared for a test flight in stiff winds from Starbase in Boca Chica, Texas, Thursday, March 6, 2025. (AP Photo/Eric Gay)

INDIANAPOLIS (AP) — Helio Castroneves, at age 50, is still chasing history at Indianapolis Motor Speedway.

A win in this year's Indianapolis 500 would give him five in his brilliant IndyCar career and break a tie with A.J. Foyt, Al Unser and Rick Mears for most wins in a race that will be run May 25 for the 109th time.

He's been unsuccessful in his last three tries to win a fifth but hopes this year, his 25th Indy 500, will be the one where he breaks history. Not even his age has discouraged the Brazilian.

“I feel I have a brand new engine,” Castroneves said. “I feel that I’m like ready to go. They say life starts at 50, so I’m ready to start again.”

Castroneves won his fourth Indy 500 driving for Meyer Shank Racing, where he's now part of team management and will drive for them again this year. If he wins, he doesn't plan to walk away from “The Greatest Spectacle in Racing.”

“I’m going to come back and try for six,” Castroneves said. “I want a statue.”

For the record, MSR has not confirmed any races for Castroneves beyond this year's Indy 500. But, the team values his contributions on and off the track, particularly his 500 victory in 2021.

Castroneves had spent 20 years driving for Team Penske, where he won the Indy 500 in 2001, 2002 and 2009. After a move to Penske's sports car program, Castroneves landed a partial ride back in IndyCar with Meyer Shank Racing, and the 500 win grew into two full seasons.

The team fields two full-time cars now for Felix Rosenqvist and Marcus Armstrong, with Castroneves as a third entry at Indianapolis.

“Basically winning that fourth, putting the team on the map and they know that they can do it again, whether it’s me or my two other teammates. They know they can do it,” Castroneves said. “And that’s probably why we keep on pushing. We feel that we’re going to another level as a team.”

Rosenqvist is currently eighth in the IndyCar standings, while Armstrong is 14th. Qualifying has been dramatically improved this year, and the team created a technical alliance with Chip Ganassi Racing that has provided tremendous benefit to MSR. The drivers all debrief together — although Ganassi driver Scott Dixon noted Wednesday that Castroneves, who has a super-sized personality, is atypically quiet in the meetings.

Ganassi drivers have five Indy 500 wins, although Dixon is the only active driver with a victory in the big race. But Alex Palou, his teammate, has opened this season with four wins in five races including last Saturday on the road course at Indy. Palou has won the last two IndyCar titles and three of the last four, and Ganassi has 16 total IndyCar championships.

That alliance has been a massive boost for MSR.

“We have a different partnership now, which really, really helps,” Castroneves said. “I’m noticing the difference and I’m happy we were able to do that. They don’t win races or championships because they’re lucky.”

AP auto racing: https://apnews.com/hub/auto-racing

FILE - Helio Castroneves of Brazil, winner of the 2021 Indianapolis 500 auto race, poses during the traditional winner's photo session at the Indianapolis Motor Speedway in Indianapolis, Monday, May 31, 2021. (AP Photo/Michael Conroy, File)