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

Don’t Forget To Look Up: Newly Discovered Comet Nishimura Visible For First Time In 400 Years

How to prevent biofilms in space

A device on NASA's Perseverance rover generated enough oxygen on Mars for a small dog to breathe for 10 hours. Astronauts could be next.