Shuttle Atlantis unwrapped ahead of public debut

The launch of the next test flight of Boeing’s Starliner crew capsule has been delayed to no earlier than April 2 after workers replaced spacecraft avionics units damaged in a power surge during testing.

Launching into a clear autumn sky at sunset, a Falcon 9 rocket took off Wednesday from NASA’s Kennedy Space Center in Florida and delivered the SES 11/EchoStar 105 communications satellite to orbit.

On its third flight Monday night, SpaceX’s Falcon Heavy rocket will fly to three different orbits with two dozen spacecraft on a mission set to last more than six hours, prompting SpaceX founder Elon Musk to declare it the company’s “most difficult launch ever.”