1 00:00:00,934 --> 00:00:05,806 NASA’s OSIRIS-REx spacecraft is heading to asteroid Bennu... 2 00:00:05,806 --> 00:00:10,811 and back. [music] 3 00:00:10,811 --> 00:00:14,481 [music] 4 00:00:14,481 --> 00:00:16,250 The OSIRIS-REx mission goal is to study 5 00:00:16,250 --> 00:00:21,255 near-Earth asteroid Bennu and return a sample to Earth.   6 00:00:21,255 --> 00:00:25,926 OSIRIS-REx’s launch window opens September 8, 2016 from Space 7 00:00:25,926 --> 00:00:29,863 Launch Complex 41 at Cape Canaveral, Florida. 8 00:00:29,863 --> 00:00:39,039 [dramatic music] [rocket fires] 9 00:00:39,039 --> 00:00:42,376 The spacecraft, nestled inside a Centaur upper stage, 10 00:00:42,376 --> 00:00:46,680 launches on an Atlas V rocket with a single solid rocket booster. 11 00:00:46,680 --> 00:01:00,794 [rocket stops firing] [dramatic music continues] 12 00:01:00,794 --> 00:01:06,400 The rocket’s first stage separates... 13 00:01:06,400 --> 00:01:10,571 and then the Centaur upper stage fires. 14 00:01:10,571 --> 00:01:16,643 The fairings separate from the rocket... 15 00:01:16,643 --> 00:01:23,016 and the OSIRIS-REx spacecraft releases from the Centaur upper stage. 16 00:01:23,016 --> 00:01:30,023 Angled toward the Sun, the spacecraft deploys its solar arrays. 17 00:01:30,023 --> 00:01:33,827 Now traveling over 25,000 miles per hour, 18 00:01:33,827 --> 00:01:39,166 OSIRIS-REx escapes Earth’s gravity... 19 00:01:39,166 --> 00:01:41,735 and begins its cruise toward asteroid Bennu. 20 00:01:41,735 --> 00:01:46,039 [softer, driving music] 21 00:01:46,039 --> 00:01:48,041 After 23 months, the spacecraft arrives at 22 00:01:48,041 --> 00:01:53,280 asteroid Bennu in August, 2018. 23 00:01:53,280 --> 00:01:58,251 With its suite of observational instruments, OSIRIS-REx orbits 24 00:01:58,251 --> 00:02:03,190 the asteroid... studying its characteristics and mapping its 25 00:02:03,190 --> 00:02:08,962 surface. After four phases of survey observations, OSIRIS-REx 26 00:02:08,962 --> 00:02:15,302 begins preparations to collect the sample. In July 2020, after 27 00:02:15,302 --> 00:02:18,905 months of rehearsals and study, the spacecraft approaches for 28 00:02:18,905 --> 00:02:23,744 sample collection. It slowly descends to Bennu’s surface at 29 00:02:23,744 --> 00:02:28,215 less than a quarter mile per hour. With an outstretched arm, 30 00:02:28,215 --> 00:02:32,853 OSIRIS-REx briefly touches the surface. The touch-and-go sample 31 00:02:32,853 --> 00:02:36,857 acquisition mechanism, TAGSAM, blows high-pressure nitrogen gas 32 00:02:36,857 --> 00:02:40,894 into the surface rocks and dust, sending loose asteroid material 33 00:02:40,894 --> 00:02:42,796 up into the TAGSAM head. 34 00:02:42,796 --> 00:02:47,334 [dramatic rise and fall in the music] 35 00:02:47,334 --> 00:02:52,105 OSIRIS-REx backs away from Bennu... and stows the 36 00:02:52,105 --> 00:02:55,042 sample in a capsule for its journey to Earth. 37 00:02:55,042 --> 00:03:02,282 [calm driving music continues] 38 00:03:02,282 --> 00:03:06,987 In March 2021, the window opens for OSIRIS-REx to depart Bennu. 39 00:03:06,987 --> 00:03:09,556 [music drives harder] 40 00:03:09,556 --> 00:03:15,896 The spacecraft returns to Earth September 24, 2023 and jettisons the Sample Return 41 00:03:15,896 --> 00:03:20,067 Capsule. As the spacecraft leaves Earth, the return capsule 42 00:03:20,067 --> 00:03:25,005 enters the Earth’s atmosphere at over 27,000 miles per hour, 43 00:03:25,005 --> 00:03:27,007 protected by a heat shield. 44 00:03:27,007 --> 00:03:34,014 [intense friction of heat shield against atmosphere] [driving music continues] 45 00:03:34,014 --> 00:03:37,117 A couple miles above the surface, a parachute deploys... 46 00:03:37,117 --> 00:03:45,025 [parachute deploys and flutters in the wind] 47 00:03:45,025 --> 00:03:49,029 and the capsule lands softly in the Utah desert. 48 00:03:49,029 --> 00:03:54,935 [soft thump] [dramatic music climax] 49 00:03:54,935 --> 00:04:00,207 Bennu’s secrets can now be investigated for decades to come. 50 00:04:00,207 --> 00:04:15,956 [soft music finish]