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Boeing's Starliner spacecraft will launch on a crucial NASA test flight today. Here's how to watch live.

Update for 7:50 p.m. EDT: Boeing's Starliner OFT-2 spacecraft has successfully launched into orbit on a ULA Atlas V rocket to begin a crucial test flight to the International Space Station. It is expected to reach the station Friday, May 20, at 7:10 p.m. EDT (2310 GMT). Follow our live mission updates for Starliner's OFT-2 for more.


Boeing's Starliner astronaut taxi will launch on a critical test flight Thursday evening (May 19), and you can watch the action live.

Starliner is scheduled to lift off atop a United Launch Alliance Atlas V rocket from Florida's Cape Canaveral Space Force Station on Thursday at 6:54 p.m. EDT (2254 GMT), kicking off an uncrewed mission to the International Space Station known as Orbital Flight Test-2 (OFT-2). 

You can watch it live here at Space.com, courtesy of NASA, or directly via the space agency (opens in new tab). Coverage will begin Thursday at 6 p.m. EDT (2200 GMT).

Live updates: Boeing Starliner Orbital Flight Test 2 mission to ISS

OFT-2 is designed to show that Starliner is ready to carry astronauts to and from the orbiting lab for NASA, which signed a contract with Boeing for such services back in 2014. SpaceX inked a similar deal at the same time and has already launched four operational crewed flights to the station with its Falcon 9 rocket and Dragon capsule.

If OFT-2 goes according to plan, Starliner will arrive at the International Space Station (ISS) on Friday evening (May 20), just over 24 hours after lifting off. The spacecraft will remain docked with the orbiting lab for four or five days, then depart and come back to Earth for a parachute-aided touchdown in New Mexico.

As its name suggests, OFT-2 will be Starliner's second attempt at an uncrewed ISS meetup. The original OFT, which launched in December 2019, ended prematurely after the capsule suffered a series of glitches and got stuck in the wrong orbit, unable to reach the space station.

Boeing's Starliner OFT-2 spacecraft and its Atlas V rocket roll to the launch pad on May 18, 2022. (Image credit: NASA/Joel Kowsky)

Boeing addressed the issues and got Starliner ready to launch on OFT-2 in the summer of 2021. But preflight checks shortly before that planned liftoff revealed 13 stuck valves in the capsule's propulsion system, a problem that took about eight months to diagnose and mitigate.

But everything looks good for an on-time liftoff this time around, Boeing and NASA officials have said. Prelaunch checks have revealed no issues with Starliner or its Atlas V rocket, and the duo were rolled out to their pad on Wednesday morning (May 18).

If all goes well with OFT-2, astronauts will climb aboard Starliner in the not-too-distant future; Boeing and NASA aim to launch a crewed test flight to the ISS before the end of the year.

Mike Wall is the author of "Out There (opens in new tab)" (Grand Central Publishing, 2018; illustrated by Karl Tate), a book about the search for alien life. Follow him on Twitter @michaeldwall (opens in new tab). Follow us on Twitter @Spacedotcom (opens in new tab) or on Facebook (opens in new tab).  

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Michael Wall is a Senior Space Writer with Space.com (opens in new tab) and joined the team in 2010. He primarily covers exoplanets, spaceflight and military space, but has been known to dabble in the space art beat. His book about the search for alien life, "Out There," was published on Nov. 13, 2018. Before becoming a science writer, Michael worked as a herpetologist and wildlife biologist. He has a Ph.D. in evolutionary biology from the University of Sydney, Australia, a bachelor's degree from the University of Arizona, and a graduate certificate in science writing from the University of California, Santa Cruz. To find out what his latest project is, you can follow Michael on Twitter.