Lecture 4-14-08 - the moon

Lecture 4-14-08 - the moon - Moon landing missions, manned...

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Geology 21  THE MOON Lecture - Monday, April 14, 2008 LUNAR FORMATION Impact Rate vs. Time  (chart on page 164) — 3-4 billion years ago possible formation — +4 billion years ago possible maximum heavy bombardment — ~3.8 billion years ago  formation of maria —  ~2.3 billion years ago observed mare craters created — .5 billion years ago formation of Tycho Impact craters and crater size distributions (page 162 in textbook) Larger impactors will erase evidence of an impact by a smaller impactor This changes the features of the surface The moon, having no atmosphere, is a better representation of its surface.
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Unformatted text preview: Moon landing missions, manned and unmanned Competition between the Russians and Americans to get there first Apollo 11 (July 1969, Armstong took historic first step), 12, 14, 15, 17 (United States)/ Apollo 13 failed mission (explosion of O 2 tank) teams of three; two went to surface of moon (command module pilot [stays w/spacecraft] Kennedy's goal to land a man on the moon safely (A11) Luna 1 (Russia, 1959) - first spacecraft to escape the Earth Page 1 of 1...
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This note was uploaded on 10/19/2008 for the course GEO 21 taught by Professor Repka during the Spring '08 term at Saddleback.

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