1 00:00:00,030 --> 00:00:04,100 Betsy Congdon Lead Engineer for Parker Solar Probe's heat shield. Curtis Wilkerson - Engineer 2 00:00:04,120 --> 00:00:08,110 NASA's Parker Solar Probe is exploring the Sun. 3 00:00:08,130 --> 00:00:12,220 Engineers show us the strength of the spacecraft's protective shield. 4 00:00:12,240 --> 00:00:16,260 Betsy: Here we have a 5 00:00:16,280 --> 00:00:20,290 piece of the heat shield for Parker Solar Probe 6 00:00:20,310 --> 00:00:24,320 which is a sandwich panel, made of carbon 7 00:00:24,340 --> 00:00:28,410 that is like the graphic epoxy you might find in your golf clubs or your tennis rackets 8 00:00:28,430 --> 00:00:32,450 some carbon foam, and then another piece of carbon-carbon on the back. 9 00:00:32,470 --> 00:00:36,450 It's very light weight, as you can see. And here I've got a blowtorch 10 00:00:36,470 --> 00:00:40,640 and I'm gonna use it to get the front surface of this glowing hot. 11 00:00:40,660 --> 00:00:44,700 And then we will have a nice demonstrator come in and touch the back with his hands. 12 00:00:44,720 --> 00:00:48,730 Let's get this started. 13 00:00:48,750 --> 00:00:52,760 30 seconds later 14 00:00:52,780 --> 00:00:56,800 Betsy: You can start seeing it glowing red. The real heat shield gets up 15 00:00:56,820 --> 00:01:00,850 to about 2500 degrees Fahrenheit which we're not going to do today. 16 00:01:00,870 --> 00:01:04,880 But we are going to get it to a couple of hundred degrees Fahrenheit. 17 00:01:04,900 --> 00:01:08,910 It's glowing pretty good now. Curtis, why don't you touch the back surface of that? 18 00:01:08,930 --> 00:01:12,960 What does it feel like? 19 00:01:12,980 --> 00:01:16,990 Curtis: Pretty cool 20 00:01:17,010 --> 00:01:21,020 Betsy: "Nice and cool," he says. Which is just how we like it. Keeping the spacecraft cool. 21 00:01:21,040 --> 00:01:25,020 music 22 00:01:25,040 --> 00:01:29,090 tone 23 00:01:29,110 --> 00:01:33,130 beeping 24 00:01:33,150 --> 00:01:35,475 beeping