1 00:00:00,000 --> 00:00:01,568 [music] 2 00:00:01,868 --> 00:00:04,170 Across the country in Greenbelt, Maryland, 3 00:00:04,170 --> 00:00:06,606 scientists at the Goddard Space Flight Center 4 00:00:06,606 --> 00:00:09,209 are also busy analyzing lunar samples. 5 00:00:09,609 --> 00:00:11,211 Dr. Isidore Adler tells 6 00:00:11,211 --> 00:00:13,346 what his group has found so far. 7 00:00:13,413 --> 00:00:15,482 There is a much higher concentration 8 00:00:15,482 --> 00:00:16,483 of some minerals. 9 00:00:16,483 --> 00:00:17,150 For example, 10 00:00:17,150 --> 00:00:19,352 there is a mineral called ilmenite, 11 00:00:19,352 --> 00:00:22,088 which is an iron titanium oxide, 12 00:00:22,088 --> 00:00:24,090 which appears to be unusually high 13 00:00:24,090 --> 00:00:26,292 in concentration in these rocks. 14 00:00:26,526 --> 00:00:28,028 And it seems to indicate 15 00:00:28,028 --> 00:00:29,829 perhaps, that at some time or other, 16 00:00:29,829 --> 00:00:31,531 the Moon was exposed, 17 00:00:31,531 --> 00:00:33,566 at least these surface materials, 18 00:00:33,566 --> 00:00:35,902 to some rather severe heating. 19 00:00:36,236 --> 00:00:37,971 So these frozen samples 20 00:00:37,971 --> 00:00:39,105 were actually collected 21 00:00:39,105 --> 00:00:40,106 from a region on the Moon 22 00:00:40,106 --> 00:00:42,075 that was in shadow from the Sun. 23 00:00:42,075 --> 00:00:44,310 So it was basically a large boulder. 24 00:00:44,344 --> 00:00:45,178 In the near future, 25 00:00:45,178 --> 00:00:46,112 we're going back to the Moon 26 00:00:46,112 --> 00:00:47,180 and hopefully going to the polar 27 00:00:47,180 --> 00:00:47,914 regions of the Moon, 28 00:00:47,914 --> 00:00:49,015 where some of these regions 29 00:00:49,015 --> 00:00:50,483 are in permanent shadow. 30 00:00:50,483 --> 00:00:51,584 These particular samples 31 00:00:51,584 --> 00:00:52,719 are really great analogs 32 00:00:52,719 --> 00:00:54,320 for what we might expect 33 00:00:54,320 --> 00:00:55,955 to see in the polar regions 34 00:00:55,955 --> 00:00:57,223 when we go back. 35 00:00:57,223 --> 00:00:59,092 [music]