Lockheed Martin just unveiled a hypersonic glide body, the NXGB, built for mass production, and that detail is what unsettles rivals

Lockheed Martin's NXGB hypersonic glide body is built for mass production, signaling a major shift in U.S. missile strategy.

A 22-year-old NASA telescope is quietly falling toward Earth, and a $30 million robotic lifesaver is launching this week in a first-of-its-kind rescue

NASA prepares a robotic mission to rescue the aging Swift telescope before orbital decay brings the observatory back to Earth ...