WEBVTT FILE 1 00:00:07.607 --> 00:00:10.110 (music throughout) NASA White Sands is a remote test 2 00:00:10.110 --> 00:00:15.281 facility that the agency uses for some of the more dangerous testing 3 00:00:15.782 --> 00:00:18.084 that is needed to support the NASA missions. 4 00:00:19.085 --> 00:00:21.988 The size of the guns, the biggest gun we have 5 00:00:21.988 --> 00:00:25.458 is about 225 feet 6 00:00:25.825 --> 00:00:29.562 and the building itself is only about 200 feet long. 7 00:00:30.196 --> 00:00:33.433 So part of the gun does actually stick out of the building. 8 00:00:34.067 --> 00:00:38.772 There is a very, very large project underway right now that started 9 00:00:38.772 --> 00:00:42.742 not too long ago with the landing of the Perseverance Rover on Mars. 10 00:00:43.143 --> 00:00:46.679 I am a systems engineer for the capture containment and return system. 11 00:00:46.713 --> 00:00:50.050 This system is the NASA payload which is basically responsible 12 00:00:50.050 --> 00:00:52.519 to bring the samples, the Mars samples back to Earth. 13 00:00:53.486 --> 00:00:57.624 When I'm standing in is actually called a hypervelocity test facility. 14 00:00:57.657 --> 00:01:01.861 It's where we shoot little projectiles at objects, basically 15 00:01:01.861 --> 00:01:05.131 as fast as we can achieve on on earth. 16 00:01:05.965 --> 00:01:08.868 In our case, we are testing to see what will happen 17 00:01:09.169 --> 00:01:12.072 to our designs if they were to be impacted 18 00:01:12.072 --> 00:01:14.908 by a micrometeoroid on the trip to or from Mars. 19 00:01:15.742 --> 00:01:19.813 The goal here is to see how well those materials withstand 20 00:01:19.813 --> 00:01:23.850 those impacts, to make sure that we don't lose containment of our sample. 21 00:01:23.850 --> 00:01:30.290 Hypervelocity guns work in two sections, which are a two stage light gas gun. 22 00:01:30.290 --> 00:01:34.861 We pressurized hydrogen in the first section in the middle of the gun. 23 00:01:34.861 --> 00:01:35.795 There's a barrel. 24 00:01:35.795 --> 00:01:37.931 That's where the projectile is held. 25 00:01:38.498 --> 00:01:40.934 The pressures that are generated from these guns 26 00:01:40.934 --> 00:01:45.271 can actually level the building, and that pressure is suddenly released 27 00:01:45.271 --> 00:01:48.842 where the projectile is, where the barrel in the middle of the gun is. 28 00:01:49.342 --> 00:01:52.178 And then from that point on, there's 29 00:01:52.178 --> 00:01:55.548 a simulated vacuum which simulates space, 30 00:01:57.183 --> 00:02:00.787 and then it is impacted where the target is. 31 00:02:02.188 --> 00:02:03.556 It's all about the timing. 32 00:02:03.556 --> 00:02:08.595 You're dealing with about 500 microseconds, for the timing of the event. 33 00:02:08.828 --> 00:02:13.032 So unlike a traditional firearm, a lot goes into preparing these guns 34 00:02:13.032 --> 00:02:18.471 for a shot set up takes anywhere from an hour to a full day. 35 00:02:18.638 --> 00:02:21.141 Gunpowder is prepared and loaded by hand. 36 00:02:22.275 --> 00:02:25.912 We're able to remotely operate the guns via 37 00:02:25.912 --> 00:02:27.347 the bunker 38 00:02:32.652 --> 00:02:34.154 on the count of three, 39 00:02:34.154 --> 00:02:41.427 three, two, one. 40 00:02:41.427 --> 00:02:45.832 It's equal to 25 times faster than a 44 mag. 41 00:02:45.999 --> 00:02:50.670 The velocities are also like flying from New York to San Francisco 42 00:02:50.670 --> 00:02:53.540 in 5 minutes. 43 00:02:56.709 --> 00:02:59.012 One of the interesting things that we learn 44 00:02:59.012 --> 00:03:03.750 is that a massive piece of metal does not offer the same level of protection 45 00:03:03.783 --> 00:03:07.387 of really thin pieces of metal, but stack all together. 46 00:03:07.520 --> 00:03:11.524 What we are doing is we have very light layers of material and those layers 47 00:03:11.524 --> 00:03:14.727 they function to progress, fully break the particles 48 00:03:14.827 --> 00:03:18.798 until the very last layer that receives all the energy from the hit. 49 00:03:19.065 --> 00:03:20.133 And it stops right there. 50 00:03:21.901 --> 00:03:23.870 If it wasn't for this study, 51 00:03:23.870 --> 00:03:29.008 we would be sending up rockets and satellites and 52 00:03:29.642 --> 00:03:33.012 pieces of the space station, not knowing whether they were going 53 00:03:33.012 --> 00:03:36.416 to protect the astronauts or the equipment we send up. 54 00:03:36.583 --> 00:03:40.153 It's a really neat thing to see when you test something 55 00:03:40.153 --> 00:03:44.090 and have it correlate very well back to your your simulations. 56 00:03:44.123 --> 00:03:48.461 I am super excited to be working this mission to bring back samples from Mars. 57 00:03:48.494 --> 00:03:50.163 It is something that has 58 00:03:50.163 --> 00:03:53.900 never been done before and we are learning so much from this, 59 00:03:53.967 --> 00:03:58.171 especially because this Mars is a planet that we had fascinations for a very, 60 00:03:58.171 --> 00:03:59.072 very long time. 61 00:03:59.072 --> 00:04:01.374 So it is 62 00:04:01.608 --> 00:04:04.844 humbling and a lot a lot of work, right. 63 00:04:04.844 --> 00:04:06.746 Being here testing things. 64 00:04:06.746 --> 00:04:09.749 It's it's amazing.