LIFTOFF! Boeing Starliner carries 2 astronauts to space in 'final test' for NASA (watch live)

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Boeing's Starliner spacecraft successfully carried two NASA astronauts to space today (June 5) in the final test of the spacecraft's capabilities. Starliner is bound for the International Space Station.

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Boeing's Starliner spacecraft has successfully carried two astronauts into space for the first time — and you can watch the groundbreaking mission progress live right here.

Starliner safely reached Earth orbit at approximately 11:24 a.m. EDT. It is expected to reach the ISS at 12:15 p.m. EDT on Thursday (June 6).

Starliner has faced numerous delays on its way to this first crewed mission. The original launch date was scheduled for May 6 — however, it was scrubbed roughly two hours before liftoff due to an issue with a buzzing oxygen valve on the ULA Atlas V rocket meant to carry Starliner into space. The launch was rescheduled for June 1; however, this attempt was aborted minutes before liftoff due to a computer glitch in a ground launch sequencer, according to Space.com.

Boeing's Starliner spacecraft is strapped to an Atlas V rocket and ready to launch on June 5, 2024. (Image credit: NASA)

You can watch the latest developments in the NASA live stream above. NASA will continue their coverage all through the day, until Starliner eventually docks at the ISS on Thursday. NASA will host a post-launch press conference beginning at 12:30 p.m. EDT (1430 GMT) featuring NASA Administrator Bill Nelson, among other experts on the team.

This is Boeing's second test flight to the ISS, and its third flight test overall, according to NASA. This final test flight will "validate the transportation system, including the launch pad, rocket, spacecraft, in-orbit operational capabilities, and return to Earth with astronauts aboard," the space agency added.

Editor's note: This article was updated at 11:05 a.m. EDT following the successful launch of Starliner.

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Brandon Specktor
Brandon Specktor
Editor

Brandon is the space / physics editor at Live Science. With more than 20 years of editorial experience, his writing has appeared in The Washington Post, Reader's Digest, CBS.com, the Richard Dawkins Foundation website and other outlets. He holds a bachelor's degree in creative writing from the University of Arizona, with minors in journalism and media arts. His interests include black holes, asteroids and comets, and the search for extraterrestrial life.