| Age |
About the same age as the Sun: 4.5
billion years |
| Location |
Solar system |
| Avg. distance from the Sun |
227,900,000 km |
| Length
of day |
25
hours |
| Length
of year |
686
days |
| Range
of temperature |
-120C
to 30C |
| Atmosphere |
Thin
gaseous atmosphere - 95% carbon dioxide, 3% nitrogen |
| Diameter |
6794 km |
| Period of revolution |
1.88 Earth years (687 Earth days) |
| Number of moons |
Mars has
2 moons: Deimos and
Phobos. |
| Distinguishing features |
Known as the Red Planet, Mars has a
very thin atmosphere with nitrogen,
argon, and trace amounts of oxygen and water vapor. There is evidence
that liquid water flowed on the surface long ago. Now all the water
left on the planet is frozen in the polar ice caps or beneath the
surface. Composed mainly of dense rocky material. |
