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Mars Facts
A day on Mars is very similar to a day on Earth. The length of a martian day is 24 hours, 37 minutes.
The martian atmosphere is extremely thin. Its atmospheric volume is less than 1 percent of Earth’s.
Mars’ largest moon Phobos has a diameter of 22.5 km, whereas the diameter of Earth’s moon is 3,475 km.
When viewed from the surface of Mars, the Sun looks roughly half the size it appears on Earth.
Because of its reddish color, Mars is often known as the "Red Planet".
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About 95 percent of the martian atmosphere is carbon dioxide, other gases are argon, nitrogen (N2) etc.
Mars has two tiny moons: Phobos and Deimos.
Olympus Mons – the tallest volcano in the solar system is located on Mars. It is 23 km tall and over 600 km in diameter.
Mars’ moon Phobos is gradually being pulled by Martian gravitational force. In about 10 million years, Phobos will be torn apart by Mars’ gravity then Mars will have a ring system.
NASA's Mariner 4 spacecraft was the first spacecraft to visit Mars. It flyby mars on 14 July 1965.
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