Mars Flashcards

1
Q

What are the basic information about Mars?

A
  1. Mars is 52% further the Sun with a significantly eccentric orbit
  2. Mars takes 687 Earth days or 1.88 Earth years to revolve around the Sun
  3. Mars has a very similar rotation period and axis tilt to the Earth
  4. Mars is much smaller than the Earth being
    roughly 53% the size, 11% the mass of the Earth
  5. Its density is lower being closer the density of the Moon than the Earth
  6. Mars has a low albedo similar to Mercury and the
    Moon
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2
Q

The Day on Mars

A

1 mean Martian solar day = 24 hr 37 mins = 1 sol

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3
Q

How are the seasons on Mars?

A

Seasons last twice as long

Vary in duration and intensity due to elliptical orbit

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4
Q

Why Mars does not have plate tectonic?

A

Because Mars is small and cooled quickly,
its crust became too thick to form plates
Instead heat was lost through hot spots in the crust

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5
Q

The Tharsis Region

A

Massive bulge in Martian crust with huge shield volcanoes

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6
Q

What is the activity level of the Tharsis volcanoes?

A

Crater counts on slopes suggest activity within last 100 million years
Mostly likely dormant
Millions of years between eruptions

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