Amazing Space- Fast Facts: Mars

Age	About the same age as the Sun: 4.5 billion years
Location	Solar system
Avg. distance from the Sun	227,900,000 km (141,600,000 miles)
Diameter	6794 km (4222 miles)
Mass	6.4219 x 10²³ kg
Orbital period around the Sun	1.88 Earth years (687 Earth days)
Number of moons	Mars has two moons: Deimos and Phobos.
Distinguishing features	Known as the Red Planet, Mars has a very thin atmosphere containing mostly carbon dioxide, 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.