NASA astronauts will ride a United Launch Alliance Atlas V for the 1st time on May 6. Getting the long-running rocket ready for humans took thousands of checks.

Boeing's Starliner launch will be the 1st astronaut flight on an Atlas V rocket. How did NASA and ULA get it ready for crews? (exclusive)

Source: space
Source Link: https://www.space.com/atlas-v-starliner-astronauts-rocket-build