Landing on Mars is hard. That’s why we’re testing #Mars2020 rover’s parachute at supersonic speeds! This special parachute will slow down the spacecraft as it enters the Martian atmosphere at over 12,000 mph. Learn more: http://go.nasa.gov/2jrjssO | NASA - National Aeronautics and Space Administration

With three supersonic runs, XB-1 completed its 13th and final flight, bringing our groundbreaking flight test program to a close. Watch it soar over the Mojave Desert. | Boom Supersonic