Four veteran Space Shuttle Main Engines will benchmark the performance of the rookie Space Launch System (SLS) Core Stage in the final two critical tests of NASA’s Green Run campaign. After ...

In the span of a few seconds, a smooth countdown to launch Space Shuttle Mission STS-93, a five-person crew, and the Chandra X-Ray Observatory abruptly ended twenty years ago just before ignition ...

Space history curator Michael Neufeld explores the history of Kennedy Space Center’s Launch Complex 39, which has seen launches of the Apollo program and Space Shuttle, and will see the return ...

Twenty-five years ago, Space Shuttle Columbia launched the Chandra X-ray observatory and nearly ended in catastrophe. As the then-ascent flight director John Shannon observed: "Yikes. We don't ...