Pentagon gearing up to launch 1st experimental navigation satellite in 50 years (video)

Watch scientists turn an aircraft into a moon gravity research lab (video)

24 hours of the Earth's rotation, with the camera locked to the sky instead of the ground. We're all hanging out on this spinning rock. (Video by Bartosz Wojczyński at Tivoli Southern Sky Guest Farm in Namibia)

Watch 1st trailer for new open-world 'Star Wars Outlaws' video game (video)