Mars Flashcards
1
Q
What are the basic information about Mars?
A
- Mars is 52% further the Sun with a significantly eccentric orbit
- Mars takes 687 Earth days or 1.88 Earth years to revolve around the Sun
- Mars has a very similar rotation period and axis tilt to the Earth
- Mars is much smaller than the Earth being
roughly 53% the size, 11% the mass of the Earth - Its density is lower being closer the density of the Moon than the Earth
- Mars has a low albedo similar to Mercury and the
Moon
2
Q
The Day on Mars
A
1 mean Martian solar day = 24 hr 37 mins = 1 sol
3
Q
How are the seasons on Mars?
A
Seasons last twice as long
Vary in duration and intensity due to elliptical orbit
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
5
Q
The Tharsis Region
A
Massive bulge in Martian crust with huge shield volcanoes
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