A former NASA scientist explains how we know whether Blue Origin New Shepard made it to space, and how its altitude compares ...

Canada is making a significant push to boost its military strength in the Arctic amid climate change and growing risk of ...

At the 72nd edition of EAA AirVenture Oshkosh, the U.S. Air Force will bring a Lockheed U-2 from the Beale Air Force Base in California.