Back to  How much does Mars Weigh?

Mars is the fourth planet in the Solar System. Here is a table showing information about the solar system:

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 Planetary Data Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune Pluto Average Distance from Sun 0.388 0.722 1.000 1.524 5.203 9.539 19.19 30.06 39.6 (astronomical units) Average Diameter (Earth=1) 0.382 0.949 1.000 0.529 11.21 9.46 4.01 3.88 0.18* Mass (Earth=1) 0.055 0.815 1.000 0.107 317.7 95.15 14.53 17.15 0.002* Number of Known Satellites 0 0 1 2 16 20 15 8 1

Since the planets are "floating" in space, they don't really weigh anything at all, however, they have mass. This is similar to what you think of as weight so if you look in the table under Mars you will see that it's mass is 0.107, or about on tenth that of the Earth. Your next question is how much does the Earth weigh isn't it? The Earth's mass is 5.976 x 1024 kilograms so on tenth of that would be 5.976 x 1023 kilograms, or 597,600,000,000,000,000,000,000 kilograms.

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Excerpted from Compton's Interactive Encyclopedia
Copyright (C) 1993, 1994 Compton's NewMedia, Inc.

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