Watch Europe's new Ariane 6 rocket fire up its engine for the 1st time (video)

FAA orders Musk’s SpaceX to take 63 corrective actions on Starship, keeps rocket grounded

Igniting Ariane 6: Europe’s Spaceport Tests the Next Big Thing in Rockets

Astronauts just 3D-printed knee cartilage in space for the 1st time and it's as weird as it sounds