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The Solar System: Mars |
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Mars Facts |
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Diameter: 6,792 Km (4,221 miles) |
Time for one rotation: 24 hours 37 minutes |
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| Right: Ice forms at the north pole of Mars in the northern winter. It is so cold that some of the ice is frozen carbon dioxide.
Also in the photograph is Olympus Mons - a very large shield volcano - shield volcanoes have gently sloping sides. The volcano has a height of nearly 22 km (13.6 miles or 72,000 ft) Mars has seasons like Earth, but they last twice as long. This is because Mars is tilted on its axis by about 25.19 degrees, which is similar to the axial tilt of the Earth (22.5 degrees). Below: Mars’ Valles Marineris, the longest and deepest canyon in the entire Solar System. It is 4,000 kilometres (2,500 miles) long – ten times longer than the Grand Canyon and nearly four times deeper. |
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| Sand storms sometimes cover the entire surface | NASA's Curiosity Rover on the surface | |
Earth Facts |
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Diameter: 12,742 Km (7,896 miles) |
Time for one rotation: 23 hours 56 Minutes |
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The Solar System page 7 |
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