| |
|
| |
  |
  |
| Colour |
Red,
due to rust, iron oxide in soil |
Mostly
blue, due to water coverage |
| Diameter |
4,217
miles |
7,962
miles |
| Distance
from the sun |
Min
orbit 128 million miles; max 155 million miles |
Min
orbit 91 million miles; max 94.5 million miles |
| Distance
from earth |
35
million miles |
— |
| Orbit
time around the sun |
1.88
years |
1
year |
| Length
of day |
24
hours, 37 minutes |
24
hours |
| Temperature |
-82ºC
to 0ºC |
-87ºC
to 57.7ºC |
| Satellites |
2
moons (Phobos and Deimos) |
1
moon |
| Atmosphere |
95.3%
carbon dioxide, 2.7% nitrogen, 1.6% argon, 0.13% oxygen |
78%
nitrogen, 21% oxygen, 1% other gases |
| Geographical
features |
Cratered
terrain, mountains, canyon systems, river beds, dune fields, volcanoes.
Olympus Mons is the highest peak, not only on Mars but in our solar
system, rising 14 miles above the surrounding plains. Valles Marineris,
a canyon, reaches depths of 4 miles. |
Oceans,
mountains, rivers, deserts, volcanoes, earthquake faults. Mount
Everest, the highest peak, rises to 29,035 feet (5.5 miles) above
sea level. The Grand Canyon is less than a mile deep. |
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