Lecture 9 - Lecture 9 9/30/10 Ed Barkley from UT discovered...

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Lecture 9 – 9/30/10 Ed Barkley from UT discovered water on Mars in the 1960s Meandering channels and “ox bows” are evidence for water on the planet a) Has a canyon system the size of the US b) Martian cliffs are very geologically similar to earths Layered rocks are another piece of evidence of water flow that indicates erosion a) There are images of frost on Mars during the winter b) Pictures of Viking 1 shows new geologically active surface Jagged rocks on surface possibly originate from a glacier scooping them up then melting and dropping them Pattern of southern ice cap is due to winds Giant volcano Olympus Mons is 500 km across a) There’s also evidence of ancient volcanoes by heavy erosion b) Darker regions on the surface are new lava flows and the lighter areas are older Mars’s moons are not round because their orbital gravity is not that strong and smaller objects don’t have as good of gravity Larger planets a) Are more geologically active
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This note was uploaded on 05/03/2011 for the course AST 301 taught by Professor Harvey during the Fall '07 term at University of Texas.

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Lecture 9 - Lecture 9 9/30/10 Ed Barkley from UT discovered...

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