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Mars

Of, or relating to the study of, planet Mars.

Industry: Astronomy

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Mars

astronomical unit (A.U.)

Astronomy; Mars

A measure for distances within the solar system, equal to the mean ditance of the earth from the sun, which is about 93,000,000 miles.

atmosphere

Astronomy; Mars

The gaseous envelope surrounding a celestial body.

aerobraking

Astronomy; Mars

The use of atmospheric drag to slow a spacecraft.

albedo

Astronomy; Mars

A measure of the ability of a body to reflect light.

aphelion

Astronomy; Mars

The point in the orbit of a planet where it is farthest from the sun.

Mars

Astronomy; Mars

Mars is the fourth planet from the Sun. Mars' diameter is 6,790 km and takes 687 days to orbit the Sun. Mars is named after the Roman god of war. In Eastern Asian cultures Mars is also known as the ...

Phobos

Astronomy; Mars

The larger and innermost of the planet Mars' two moons. Phobos was discovered by Asaph Hall on August 17, 1877. In Greek mythology, Phobos was the son of Ares (Mars) and Aphrodite (Venus) and was the ...

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