|
|
Mars
as seen from
Hubble
Credit: NASA ESA |
| Atmosphere: |
95% (CO2), 3% nitrogen, 1.6% argon,
very thin only 1% of Earth. |
| Mass: |
6.42*10^23kg 11%
of
Earth |
| Equatorial
diam: |
6794km
or 4222mi 53% of Earth |
| Surface
gravity: |
3.7m/s
38%
of Earth |
| Escape
velocity: |
5.0km/s
or 3.1mi/s 45% of Earth |
| Surface temp: |
-220F-70F
|
| Satellites (nat.): |
Phobos and Deimos |
|
