. MARS
MARS

# WELCOME TO MARS

```Mass  (kg) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.42  x  10^23
Diameter  (km) . . . . . . . . . . . . . . . . . . . . . . . . . . 6787
Mean density  (km/m^3) . . . . . . . . . . . . . . . . . . . . . . 3940
Escape velocity  (m/sec) . . . . . . . . . . . . . . . . . . . . . 5000

Distance from the sun  . . . . . . . . . . . . . . . . . . . . . . Shortest-128,400,000 mi.(206,600,000 km.)
Greatest-154,800,000 mi.(249,200,000 km.)
Mean-141,000,000 mi.(227,900,000 km.)
Rotation period (length of day in Earth days)  . . . . . . . . . . 1.026
Revolution period (length of year in Earth days) . . . . . . . . . 686.98

Obliquity (tilt of axis in degrees)  . . . . . . . . . . . . . . . 25
Orbit inclination (degrees)  . . . . . . . . . . . . . . . . . . . 1.85
Orbit eccentricity (deviation from circular) . . . . . . . . . . . 0.093

Mean surface temperature(Fahrenheit) . . . . . . . . . . . . . . . -225 to 63 F

Visual geometric (reflectivity)  . . . . . . . . . . . . . . . . . 0.15
Highest point on surface . . . . . . . . . . . . . . . . . . . . . Olympus Mons
(about 24 km above surrounding lava plains)
Atmospheric components . . . . . . . . . . . . . . . . . . . . . . 95% carbon dioxide
3% nitrogen
1.6% argon
Surface materials  . . . . . . . . . . . . . . . . . . . . . . . . basaltic,rock and
altered
materials

Number of Satellites . . . . . . . . . . . . . . . . . . . . . . . 2

There is an Asteroid Belt between Mars and Jupiter
There is a picture of a face and couple of pyramids in the
Cydonia Region on Mars
The surface is reddish in color because of rust-colored substance, called iron oxides
Observation on Mars were first made by Galileo in 1610
Mars is half the size of Earth
Mar's axis tilts at an angle of about 24 degrees
Mars has a thin atmosphere
The atmosphere of Mars is 1/100 less thicker than earth.
Winds are common on earth because they have a thin atmosphere
Mars is about 4/5 as dense as the earth
One of the largest volcanoes on Mars is called Olympus Mons which is 15.5 miles(25 km) high
and more than 340 miles(550 km)across at its base.
Olympus Mons is three times as higher than Mt. Everest and 100 times larger than Mauna Loa,
in Hawaii, but right now it's a dead volcano.
There is an enormous canyon called the Valles Marineris, that extends 3000 miles(5000 km) a
long the equatorial belt, 300 miles wideand drops to more than 4 miles below the surrounding
surface.
If this canyon was on earth, it would stretch from New York to California
There are polar caps on Mars. The North Polar Cap contains frozen water, which never melts,
and the southern polar cap contains frozen carbon dioxide(dry ice).

*Sends you to the next planet. **Sends you to the homepage.
FLIGHT DELAYED BECAUSE OF THE GREAT RED SPOT ON JUPITER*|PICTURES|COMPARISON TO EARTH|
I WANT TO GO HOME, MOMMY**