Mass of Mars and how does it compare to Earth?
Mars mass is 65.3697,
It is just 0.38 to the Earth standard.
Size of Mars and how does it compare to Earth?
Mars is 2,106 Mi,
Mars is only slightly more than half the size of Earth.
How long does it take to orbit the Sun?
It takes 687 days and that is 1.88 in Earth years.
How long does it take to rotate once?
Its take Mars 24 hours and 37 mintues.
Atmospheric information (composition, pressure).
The atmosphere of Mars is the layer of gases surrounding Mars. It is composed mostly of carbon dioxide. The atmospheric pressure on the Martian surface averages 600 pascals (0.087 psi; 6.0 mbar), about 0.6% of Earth's mean sea level pressure of 101.3 kilopascals (14.69 psi; 1.013 bar).
The atmosphere of Mars is about 100 times thinner than Earth's, and it is 95 percent carbon dioxide. Here's a breakdown of its composition: Carbon dioxide: 95.32 percent. Nitrogen: 2.7 percent.
Temperature information (hottest, coldest).
In winter, near the poles temperatures can get down to minus 195 degrees F (minus 125 degrees C). A summer day on Mars may get up to 70 degrees F (20 degrees C) near the equator, but at night the temperature can plummet to about minus 100 degrees F (minus 73 C).
Mars has 2 moons Phobos and Deimos.
Best image from the Earth based telescopes
Best Hubble Space Telescope image
Why do I like this planet or why did I choose this planet
I like Mars because it seems interesting to me.
How many space crafts have visited Mars?
Mariner 4 was the first spacecraft to visit Mars in 1965.
Mariner 3 was lost when the launch vehicle's nose fairing failed to jettison. Its sister ship, Mariner 4, launched on November 28, 1964, was the first successful flyby of the planet Mars and gave the first glimpse of Mars at close range.
Mars Reconnaissance Orbiter (MRO) is a multipurpose spacecraft designed to conduct reconnaissance and exploration of Mars from orbit. Mars Reconnaissance Orbiter (MRO) is a multipurpose spacecraft designed to conduct reconnaissance and exploration of Mars from orbit.
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Public - 9/27/16, 4:13 PM