NASA will begin the launch countdown for Space Shuttle Atlantis’ STS-115 mission at 6 p.m. EDT Thursday, Aug. 24, at the T-43 hour point. During this mission, Atlantis’ crew will resume construction ...

CAPE CANAVERAL, Fla. — NASA will start the launch countdown for space shuttle Discovery’s STS-120 mission at 2 p.m. EDT Saturday, Oct. 20, at T-43 hours. The countdown includes 26 hours and 38 minutes ...

NASA’s launch and mission teams, along with the Artemis II crew, completed a key test Dec. 20, a countdown demonstration test, ahead of the Artemis II flight around the Moon early next year.

As NASA winds down its space shuttle program, thousands of workers are preparing to say goodbye to three spacecraft they've spent years taking care of. The mood is bittersweet at NASA's Kennedy Space ...

Tomorrow's launch of Endeavour will be the second-to-last in America's space-shuttle program, which has lasted for 30 years. The is expected to draw up to a million people, including President Obama, ...