planetary geology. should humans be in space? it’s not like we have a choice
TRANSCRIPT
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Planetary Geology
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Should Humans Be in Space?
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It’s Not Like We Have a
Choice
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Why Not Just Use A Telescope?
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Himalayas from Space Shuttle
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“You Can’t See Borders From Space”
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Landsat View of
Green Bay
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Landsat View of Green Bay
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Spy Satellite Views of Soviet Aircraft Carrier
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World Trade Center, September 11, 2001
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Aurora From Space
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Impacts on Earth
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Recent Impact – Meteor Crater
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Manicouagan, Quebec
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Sudbury, An Ancient Impact Site
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A Shatter Cone
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Fallback Breccia
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Bessel: A Simple Crater
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Ejecta around
Timocharis
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Tycho: A Central-
Peak Crater
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How Central Peaks Form
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Upheaval Dome, Utah
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Schrodinger: A Peak-Ring Crater
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Mare Orientale A Multiple-Ring Impact
Basin
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Craters and Planetary History
• Superposition• Crater Saturation• Crater Degradation
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Superposition
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Crater Saturation
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Crater Degradation
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Mega-Impacts
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Computer Simulations by H.J. Melosh (University of Arizona)
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The Inner Planets
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Mercury from Mariner 10,
1974
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Caloris Basin,
Mercury
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Snowball in Hell: Ice on Mercury
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Ice in Mercury’s Polar Craters
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We’re Ba-a-a-ck
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Venus
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Topography of Venus
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Radar Map of Venus
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Surface of Venus
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Venus has Craters
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Venus is Volcanic
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“Pancake” Volcanoes
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Mars
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Landing on Mars
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The Real Face of Mars
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Mars from Pathfinder
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Sojourner
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Vallis Marineris
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Martian Landslide
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Olympus Mons
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Mars’ Polar Caps
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Dunes on Mars
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Ancient Floods on Mars
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A Rampart Crater
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Recent Water on Mars?
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Layered Rocks on
Mars
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Martian Meteorite
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Martian Fossils ?
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Deimos and Phobos