1 00:00:00,000 --> 00:00:04,000 [slate] 2 00:00:04,000 --> 00:00:08,000 [slate] 3 00:00:08,000 --> 00:00:12,000 [slate] So Lucy is going to survey eight 4 00:00:12,000 --> 00:00:16,000 asteroids over a 12-year mission life. 5 00:00:16,000 --> 00:00:20,000 The first asteroid is in the main belt asteroids - it's Donald Johanson. 6 00:00:20,000 --> 00:00:24,000 xxx. And then the remaining asteroids are the 7 00:00:24,000 --> 00:00:28,000 ones we call the Trojans. And because we believe that they are 8 00:00:28,000 --> 00:00:32,000 remnants of our solar system, by studying their 9 00:00:32,000 --> 00:00:36,000 geology as well as their composition 10 00:00:36,000 --> 00:00:40,000 and their mass, then that will give us insight into 11 00:00:40,000 --> 00:00:44,000 planets, planet formation and in particular the outer planets. 12 00:00:44,000 --> 00:00:48,000 [slate] 13 00:00:48,000 --> 00:00:52,000 [slate] 14 00:00:52,000 --> 00:00:56,000 The Trojan asteroids are asteroids that 15 00:00:56,000 --> 00:01:00,000 lead and trail Jupiter. And 16 00:01:00,000 --> 00:01:04,000 they are believed to be pristine remnants of our solar system 17 00:01:04,000 --> 00:01:08,000 formation. 18 00:01:08,000 --> 00:01:12,000 [slate] 19 00:01:12,000 --> 00:01:16,000 Well you can see by my shirt that 20 00:01:16,000 --> 00:01:20,000 this is actually the Lucy logo, it looks like a diamond. 21 00:01:20,000 --> 00:01:24,000 And the Lucy spacecraft was named after the Lucy 22 00:01:24,000 --> 00:01:28,000 fossil. Because we will be studying asteroids which are the fossils of 23 00:01:28,000 --> 00:01:32,000 planet formation. But the Lucy spacecraft 24 00:01:32,000 --> 00:01:36,000 and the Lucy fossil was named by archeologist Donald Johanson 25 00:01:36,000 --> 00:01:40,000 and his team, because apparently when they discovered the hominid 26 00:01:40,000 --> 00:01:44,000 they were listening to the Beatles song “Lucy in the sky with diamonds.” 27 00:01:44,000 --> 00:01:48,000 Now we do have a diamond. It’s our beam- 28 00:01:48,000 --> 00:01:52,000 splitter which is on the L’TES instrument which is used 29 00:01:52,000 --> 00:01:56,000 to split the beam. It is actually made of diamonds 30 00:01:56,000 --> 00:02:00,000 [slate] 31 00:02:00,000 --> 00:02:04,000 [slate] 32 00:02:04,000 --> 00:02:08,000 The Lucy spacecraft will travel four billion miles over its mission. 33 00:02:08,000 --> 00:02:12,000 And it is a very 34 00:02:12,000 --> 00:02:16,000 sophisticated, well-orchestrated trajectory that gets us 35 00:02:16,000 --> 00:02:20,000 there. So when we launch this Saturday at 36 00:02:20,000 --> 00:02:24,000 the opening of our launch period, we’re going to orbit the Earth 37 00:02:24,000 --> 00:02:28,000 for about a year. And then we’re doing to do 38 00:02:28,000 --> 00:02:32,000 an Earth gravity assist and what that does, is that pumps up 39 00:02:32,000 --> 00:02:36,000 our energy and our trajectory. And then we 40 00:02:36,000 --> 00:02:40,000 come back and we do another Earth gravity assist about two-years later. 41 00:02:40,000 --> 00:02:44,000 And by doing that assist it allows us to enter into 42 00:02:44,000 --> 00:02:48,000 the L-4 swarm which is the first 43 00:02:48,000 --> 00:02:52,000 set of asteroids that we do. We encounter those and then we 44 00:02:52,000 --> 00:02:56,000 come back again and loop around the Earth. We do another Earth gravity assist 45 00:02:56,000 --> 00:03:00,000 again. And you can think of that as the Earth being a slingshot. 46 00:03:00,000 --> 00:03:04,000 And then it slings us out and then we encounter the 47 00:03:04,000 --> 00:03:08,000 last set of our Trojan asteroids. [slate] 48 00:03:08,000 --> 00:03:12,000 [slate] 49 00:03:12,000 --> 00:03:16,000 You can find information about Lucy 50 00:03:16,000 --> 00:03:20,000 by going to the NASA website. 51 00:03:20,000 --> 00:03:24,000 Lucy also has a Facebook page 52 00:03:24,000 --> 00:03:28,000 as well as Twitter. There’s a lot 53 00:03:28,000 --> 00:03:32,000 of activities that Southwest 54 00:03:32,000 --> 00:03:36,000 Institute, Research Institute who is the PI institution 55 00:03:36,000 --> 00:03:40,000 has available online, as well as NASA. You can 56 00:03:40,000 --> 00:03:44,000 follow it. You can watch the launch online, 57 00:03:44,000 --> 00:03:47,669 And then you can also participate virtually as well.