1 00:00:00,666 --> 00:00:04,833 (music throughout) There are still five more Trojan asteroids to explore on your 12 year journey, 2 00:00:05,250 --> 00:00:09,500 each one has a different story to tell about the history of our Solar System. 3 00:00:10,166 --> 00:00:15,416 Next up is Polymele a mere twenty-one kilometers or 13 miles in diameter. 4 00:00:16,083 --> 00:00:20,916 Afterwards, you'll be zooming by Leucas, which rotates at an extremely slow rate 5 00:00:21,083 --> 00:00:25,083 with each day being about 18.5 Earth days long. 6 00:00:25,666 --> 00:00:30,416 Afterwards, you'll be on to Orus, which might be rich in organics and carbon. 7 00:00:32,666 --> 00:00:36,500 Lastly, you'll be on your way to a twin pair of asteroids, Patroclus 8 00:00:36,500 --> 00:00:40,666 and Menoetius. These asteroids, relatively unchanged over 9 00:00:40,666 --> 00:00:45,750 four billion years, will give us a glimpse of our Solar System's distant past. 10 00:00:46,500 --> 00:00:48,833 With each flyby of a Trojan asteroid. 11 00:00:49,000 --> 00:00:50,833 You'll be looking at time capsules 12 00:00:50,833 --> 00:00:54,833 from the birth of our Solar System over four billion years ago. 13 00:00:55,416 --> 00:00:58,916 Lucy, what your observations tell us about the composition 14 00:00:58,916 --> 00:01:02,666 and properties of the Trojan asteroids could give us clues about how 15 00:01:02,666 --> 00:01:04,000 Earth came to be. 16 00:01:06,750 --> 00:01:10,083 Absolutely. Carry on your journey, Lucy. 17 00:01:10,416 --> 00:01:13,416 And don't forget to call and show us what you find out there. 18 00:01:13,750 --> 00:01:15,500 We'll be waiting. Good luck.