How did NASA's InSight overcome '7 mins of terror' to land on Mars?
NASA's InSight landed on Mars after entering its atmosphere at 19,800 kmph in a process dubbed "seven minutes of terror". InSight's heat shield reached temperatures of over 1500ÂºC on atmospheric entry before it parachuted and decelerated with forces 12 times the Earth's gravity. All 12 engines had to be shut before the 360-kg lander deployed its three legs for touchdown.