The diameter of the Earth is about 7,926 miles (12,756 km).
The diameter of Mars is about 4,222 miles (6790 km) - roughly half that of Earth.
Mars is a smaller planet, but not the smallest (mercury). Mars is about fifty percent smaller than our earth. the size of the planet go in the order of Mercury, Mars, Venus, Earth, Neptune ,Uranus, Saturn, and Jupiter.
The surface gravity on Mars is about 37% or 3/8 that on Earth.
The gravity of Earth is 2.6 times that of Mars.Mars's gravity is 38% of Earth's gravity.
it's smaller than the Earth, about the size of Mars
Really small. 3.68x10^37% in scientific notation.
Mars is only about half the diameter of Earth.
Earth is big. Mars is small.
the earth is polluted and mars isn't :)
Mars can be compared to Earth, because they both have numerous similarities.
The gravity of Earth is 2.6 times that of Mars.
Mars is a smaller planet, but not the smallest (mercury). Mars is about fifty percent smaller than our earth. the size of the planet go in the order of Mercury, Mars, Venus, Earth, Neptune ,Uranus, Saturn, and Jupiter.
The surface gravity on Mars is about 37% or 3/8 that on Earth.
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Surface gravity on mars is 0.376 compared to that of the earth.
Mars is very similar to Earth. Mars' year and day are very similar to Earth compared to other planets.
A year on Mars is equal to 687 Earth days. That is about 2 Earth years.