Earth and Mars Comparison

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Earth and Mars Comparison
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Earth
Here is a picture of Earth, what do you see?
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Views of Mars
Here are a couple pictures of Mars, what do you
see?
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1. What surface features do Earth and Mars share
in common?
2. How are they different?
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Valleys and Canyons
Are there different kinds of valleys?
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Valles Marineris
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Valles Marineris Close-up
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Valles Marineris vs. USA
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Valles Marineris vs. Arizona
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Grand Canyon
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Side of a crater on Mars as viewed by one of the
rovers.
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Hints of Ancient Flowing Water
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If there is no water on Mars, how were the
valleys or channeled formed?
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Valley Network on Earth
By what processes are valleys formed on Earth?
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Volcanoes
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Mount St. Helens from Space
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Olympus Mons
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Olympus Mons vs. Mauna Loa
Why are the Olympus Mons and Valles Marineris so
large in comparison to similar features on Earth?
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Plains
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Heat shield and first bounce
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Mars Surface View
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Earth Plains
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What happened to the water on Mars?
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Martian Frozen Lake?
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Earth Sea Ice
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Hints in the craters

• Rampart Craters
• These are unique to Mars and are due to frost
  heaves from water trapped as ice in the Martian
  soil.

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Another clue Hematite

• This kind of hematite (an iron ore) only forms in
  water. This insinuates that Mars had to have
  flowing water at one point in order to make it.
• This picture was taken by one of the rovers on
  the surface of Mars.