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Mars
By: Brendan Walsh and Jack McCann
MARS
By Brendan Walsh & Jack McCann
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Who Discovered it, and When?
Mars is one of thebrightest planets in thesolar system
Because of this we arenot sure whodiscovered it
We are also unsure as towhen Mars wasdiscovered
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The Origin of the Name
Mars is named after the Roman God of War
Some believe it got this name because its red
color
Sometimes referred to as the red planet
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Size of the Planet
Diameter: 6,974 km
Mass: 6.4219e23 kg
Mars is the 7th
largest planet Density: 3.93 g/cm3
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Simple Facts
Mars Day: 24 hrs, 37min
Mars Year: 687 Earth
days Gravity: 38% of Earth
Atmospheric Pressure:
1% Earths sea level Temperature: Average
68f
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Internal Composition
Crust : thick layer of
oxidized iron dust and
rocks (30 miles)
Mantle: primarily silicon,
oxygen, iron, and
magnesium (900-1,200
miles)
Core: composed of iron,
nickel, and sulfur (1,800-
2,400 miles in diameter)
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Atmosphere Composition
Carbon dioxide 95.32%
Nitrogen 2.7%
Argon 1.6%
Oxygen 0.13%
Carbon monoxide 0.07%
Water vapor 0.03%
Nitric oxide .0013%
Trace gases (krypton, methane, etc)
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Rotation and Revolution
Rotation rate: 24 hours, 39 minutes, and 35
seconds
Revolution rate: 687 days
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Evidence of Water
A rover landed on Mars on August 6th
This rover found conglomerate rock
This means that water must have flowed therein the past
This was the first discovery of water on Mars
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Space Missions to Mars
Mars was the firstplanet that we tried toexplore
As of right now NASAhas two rovers on Marsright now
NASA has a plan to tryto discover more about
the water that theyfound
There have also beenmany missions to Mars
in the past
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Evidence of Life
With the finding of water it is possibly there
was life on Mars
There is no sign of life on Mars today
Also a giant crater was discovered which lead
scientists to believe there is water in Mars
surface
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Plate Tectonics
Mars may be the only other planet besides
Earth that has plate tectonics
It has not been confirmed, but there is some
proof of plate tectonics
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Fun Facts
Mars has the tallest mountain in the solar
system
Carbon dioxide makes up 95 percent of the
atmosphere
Mars experiences violent dust storms which
continually change its surface
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Bibliography
Landau, Elizabeth. "Rover Finds Evidence of Ancient Water on Mars." CNN. Cable
News Network, 01 Jan. 1970. Web. 22 Feb. 2013.
Choi, Charles Q. "Giant Mars Crater Shows Evidence of Lake ... and Maybe Life?"
Fox News. FOX News Network, 21 Jan. 2013. Web. 22 Feb. 2013.
Villard, Ray. "Discovery News." DNews. N.p., n.d. Web. 22 Feb. 2013.
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THANK YOU!
Questions?