Biofuel Research: Full Decarbonization of U.S. Aviation Sector Is Within Grasp

Air Force's Mysterious Spaceplane Finally Lands After Spending Nearly 3 Years in Orbit | The reusable vehicle set a new record during its sixth mission by spending 908 days in orbit.

Weird 'alien' sacks wash up on UK beach, most likely a whale's stomach

Solar snake spotted slithering across Sun’s surface