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Why we need to go back to Mars - Joel Levine

2013-08-01

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In this talk, planetary scientist Joel Levine shows some intriguing -- and puzzling -- new discoveries about Mars: craters full of ice, traces of ancient oceans, and compelling hints at the presence, sometime in the past, of life. He makes the case for going back to Mars to find out more. (Filmed at TEDxNASA.)

Talk by Joel Levine.


Intro
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The Story Begins: Mariner 4 Flyby The First Closeup Image of Mars - July 14, 1965
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Viking Orbiter Composite - 1976
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First Surface Color Image of the Red Planet Viking Lander 1, 1976
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Mars' Surface = Earth's Entire Land Surface
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Largest Volcanoes and Largest Canyon in Solar System
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Hellas Basin: Biggest Impact Crater in Solar System
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Olympus Mons: Largest Volcano in Solar System
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Valles Marineris: Largest Canyon in Solar System
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Mars Crustal Magnetism
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Water on Mars? Geological Evidence
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Water on Mars ? Mars Polar Caps
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Rock and Ice Glaciers on Earth and Mars
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Frozen Water in a Crater
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Northern Hemisphere Ancient Ocean Basin?
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Methane in the Atmosphere of Mars (2009)
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Locations of Mars Landings and Methane Plumes
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Straightforward Mission that Maximizes Use of Proven Technologies and Existing Infrastructure
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Testing ARES in the Earth's Atmosphere
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