1 00:00:02,634 --> 00:00:04,634 What's it Like Landing on Mars? 2 00:00:08,295 --> 00:00:09,680 We Asked a NASA Technologist. 3 00:00:09,680 --> 00:00:14,640 It's an intense, challenging and exciting\h series of events. NASA's most recent Mars 4 00:00:14,640 --> 00:00:19,680 rover, Perseverance, slowed from nearly 13,000\h miles an hour to a soft landing on the surface 5 00:00:19,680 --> 00:00:25,111 in about seven minutes. It involved\ha parachute, thrusters and even a sky\hcrane. 6 00:00:25,111 --> 00:00:28,800 But the majority of that deceleration was\h caused by the Martian atmosphere creating drag 7 00:00:28,800 --> 00:00:33,120 on the rover's heat shield and that heat shield\h went through a lot to keep the spacecraft safe. 8 00:00:33,120 --> 00:00:37,120 Understanding what the heat shield experienced\h during entry can help us design more efficient 9 00:00:37,120 --> 00:00:41,360 heat shields for future missions. That's why\h we installed MEDLI2, a set of temperature and 10 00:00:41,360 --> 00:00:45,840 pressure sensors spread across the inside of the\h heat shield that measured the extreme conditions 11 00:00:45,840 --> 00:00:50,342 experienced during Perseverance's descent\h to Mars. With the data collected from MEDLI2, 12 00:00:50,342 --> 00:00:55,280 we'll be able to improve sizing predictions for\h future heat shields and save spacecraft mass for 13 00:00:55,280 --> 00:01:01,760 scientific instruments, supplies and even humans. So,\hwhat's it like landing on mars? It's hot and very 14 00:01:01,760 --> 00:01:06,263 challenging and that's why we're working hard\h to make the process better for future missions.