![]() The rocks, when exposed to so much heat and pressure, "reset" their geologic clocks - which is useful to date the impact event, she added. (Image credit: NASA Television)Īpollo 14 brought back about 92 pounds (42 kilograms) of lunar rocks, including some excavated by the collision that created the huge Imbrium basin, Gross said. In photos: See the moon like the Apollo astronautsĪ live view of the moon from the Orion spacecraft during the Artemis 1 mission on Dec. The astronauts and their geology teams tracked down younger basalts than found during Apollo 11, helping with relative dating of events on the moon, she said. ![]() "It was more about, 'We're actually going to the moon, and we can do it the technology to show that we can do it." However, all lunar astronauts received at least some fundamental geology training - and that expanded later in the Apollo program.Īmong the earlier missions' achievements was the pinpoint landing of Apollo 12, which proved that future excursions could do geology "in more difficult terrain," Gross said, referring to the highland equatorial regions targeted by the latter three Apollo missions. "Apollo wasn't so much about science," Gross said. All told, six missions touched down: Apollos 11, 12, 14, 15, 16 and 17 Apollo 13 aborted its landing following a spacecraft emergency. "That's more like a highland region," she added.ĭuring the broadcast, Orion was flying roughly 2,000 miles (3,200 kilometers) above the sites where a dozen Apollo astronauts journeyed on the lunar surface during short excursions between 19. ![]() "We don't really expect a lot of basalts there," Gross said, referring to the south polar region of the moon where Artemis program astronauts will touch down. ![]()
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