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Valles Marinaris

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Valles Marinaris. Valles Marineris. Mars. Early Earth-based observations showed canali on the surface of Mars. Canali means “water channel”. Same as last slide. Sinuous Channels. Sinuous valley Evidence of water flow on Mars!. Mars Topography. Cratered Terrain. The Tharsis Volcanoes.

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Presentation Transcript
slide5
Mars
  • Early Earth-based observations showed canali on the surface of Mars.
          • Canali means “water channel”.
slide19
Mars
  • Has two moons: Phobos and Deimos

methane ice caps

and CO2

slide20
Mars
  • Two tiny moons, orbit close to Mars\' surface.
    • These are probably asteroids captured by Mars early in its history.
moons of mars
Moons of Mars

Phobos

Deimos

slide26
Mars
  • The Viking landers sent back close of views of a barren Martian surface.
slide34
Mars
  • Mars has neither civilization nor fields of plants, but microbial life forms still seem possible.
life on mars
Life on Mars?
  • In 1996, a team of U.S. scientists said they had discovered evidence of ancient, single-cell life on Mars…
  • ...in remains from a meteorite that plunged to Earth 13,000 years ago.
slide37

Layer of rust dust

Huge sand storms

very little atmosphere

Visited by Viking and

Pathfinder missions

terrestrial planet atmospheres
Terrestrial Planet Atmospheres

Major

Component

Clouds?

Planet

Mercury

None

None

Sulfuric Acid

Venus

CO2

H2O

Earth

N2

Mars

CO2

Ice (H2O and CO2)

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