Boeing launched its new CST-100 Starliner spacecraft with its first astronauts bound for the International Space Station from Space Launch Complex 41 at Cape Canaveral Space Force Station in Fla. on Wednesday, June 5, 2024.

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The United Launch Alliance (ULA) Atlas V rocket with Boeing’s CST-100 Starliner spacecraft launches from Space Launch Complex 41 at Cape Canaveral Space Force Station in Florida on June 5, 2024.

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The United Launch Alliance (ULA) Atlas V rocket with Boeing’s CST-100 Starliner spacecraft launches from Space Launch Complex 41 at Cape Canaveral Space Force Station in Florida on June 5, 2024.

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The United Launch Alliance (ULA) Atlas V rocket with Boeing’s CST-100 Starliner spacecraft launches from Space Launch Complex 41 at Cape Canaveral Space Force Station in Florida on June 5, 2024.

Miguel J. Rodriguez Carrillo/Getty Images
The United Launch Alliance (ULA) Atlas V rocket with Boeing’s CST-100 Starliner spacecraft launches from Space Launch Complex 41 at Cape Canaveral Space Force Station in Florida on June 5, 2024.

Gregg Newton/Getty Images
The United Launch Alliance (ULA) Atlas V rocket with Boeing’s CST-100 Starliner spacecraft launches from Space Launch Complex 41 at Cape Canaveral Space Force Station in Florida on June 5, 2024. Boeing launched its very first astronauts bound for the International Space Station aboard a Starliner capsule, which joins a select club of spacecraft to carry humans beyond Earth.

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The United Launch Alliance (ULA) Atlas V rocket with Boeing’s CST-100 Starliner spacecraft launches from Space Launch Complex 41 at Cape Canaveral Space Force Station in Florida on June 5, 2024.

Gregg Newton/Getty Images
The mission countdown clock (R) with NASA’s Vehicle Assembly Building before sunrise at the Kennedy Space Center in Cape Canaveral, Florida on June 5, 2024.

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NASA astronaut Suni Williams (C) waves as she departs the Neil A. Armstrong Operations and Checkout Building at Kennedy Space Center for Launch Complex 41 at Cape Canaveral Space Force Station in Florida to board the Boeing CST-100 Starliner spacecraft for the Crew Flight Test launch on June 5, 2024.

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NASA astronauts Butch Wilmore (R) and Suni Williams, wearing Boeing spacesuits, depart the Neil A. Armstrong Operations and Checkout Building at Kennedy Space Center for Launch Complex 41 at Cape Canaveral Space Force Station in Florida to board the Boeing CST-100 Starliner spacecraft for the Crew Flight Test launch on June 5, 2024.

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NASA astronauts Butch Wilmore (L) and Suni Williams, wearing Boeing spacesuits, wave as they prepare to depart the Neil A. Armstrong Operations and Checkout Building at Kennedy Space Center for Launch Complex 41 at Cape Canaveral Space Force Station in Florida to board the Boeing CST-100 Starliner spacecraft for the Crew Flight Test launch on June 5, 2024. Boeing on June 5 will try once more to launch astronauts aboard a Starliner capsule bound for the International Space Station. Liftoff is targeted for 10:52 am (1452 GMT) for a roughly one-week stay at the orbital laboratory.