WATCH: NASA Lands Unmanned Spacecraft On Mars
Slamming into the thin Martian atmosphere at more than 13,000 mph, NASA's InSight lander pulled off a blazing six-and-a-half minute 77-mile plunge to the surface of Mars Monday, using a huge parachute and then 12 pulsing rocket thrusters to settle to a gentle 5-mph touchdown in a billion-dollar mission to study the red planet's hidden interior.