-America’s X-37B space plane looks like a scaled-down shuttle, but it has become one of the most consequential military programs of the post-Cold War era. -Born as a NASA technology demonstrator and ...

Seven astronauts were killed in the 1986 space shuttle Challenger disaster. Because a teacher was aboard, millions of schoolchildren watched the event live in school. Forty years later, many of those ...

Officially designated the Orbital Test Vehicle (OTV), the X-37 program began in 1999 under NASA as a testbed for reusable spacecraft technologies, ie., advanced thermal protection, autonomous reentry, ...