by Ryan Quin Napalan
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This is just a demo map that you can delete right away, if you feel like it...
Mars has a very thin
atmosphere. It consists of
95% carbon dioxide (CO2),
3% nitrogen, and 1.6% argon
(there is no oxygen). The
atmospheric pressure is only
a fraction of that on Earth
(about 1% of Earth's
atmospheric pressure at sea
level), and it varies greatly
throughout the year.
Mars, the red planet, is the fourth planet
from the sun and the most Earth-like planet
in our solar system.
The surface of Mars is dry, rocky, and mostly covered with
iron-rich dust. There are low-lying plains in the northern
hemisphere, but the southern hemisphere is dotted with impact
craters. The ground is frozen; this permafrost extends for several
It is about half the size of Earth and has a
dry, rocky surface and a very thin
Mars is about 4,222 miles (6790 km) in
diameter. This is 53% (a little over half) of the
diameter of the Earth.