After NASA's Mars rover Curiosity touches down on the Red Planet tonight (Aug. 5 PDT; early Aug. 6 EDT), mission controllers will begin testing the rover's systems to make sure its onboard instruments ...
3:53 p.m.: Perseverance parachute has deployed to help control its descent to Mars. The spacecraft is now traveling at subsonic speeds. Here goes! Lighting the engines on my “jetpack” for final ...