Boeing’s Starliner spacecraft, which will carry two NASA astronauts to the International Space Station, was scrubbed this weekend.

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NASA, Boeing, and ULA (United Launch Alliance) are forgoing a Crew Flight Test launch attempt Sunday, to give the team additional time to assess a ground support equipment issue at Cape Canaveral Space Force Station’s Space Launch Complex-41 in Florida.

Saturday’s launch was to carry NASA astronauts Butch Wilmore and Suni Williams to and from the International Space Station scrubbed due to an observation of a ground launch sequencer.

Read: NASA provides updates following Boeing Starliner scrub

The system was unsuccessful in verifying the sequencer’s necessary redundancy.

ULA will assess the ground support equipment overnight, and NASA will provide an update June 2 on next steps for the flight. The next available launch opportunities are June 5, and June 6.

Watch a replay of the news conference here.

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