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Mars comes closer to Earth more than any other planet save Venus at its nearest—56 million km is the closest distance between Mars and Earth, whereas the closest Venus comes to Earth is 40 million km. Mars comes closest to Earth every other year, around the time of its opposition, when Earth is sweeping between the Sun and Mars. Extra-close ...
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The length of time for Mars to complete one orbit around the Sun in respect to the stars, its sidereal year, is about 686.98 Earth solar days (≈ 1.88 Earth years), or 668.5991 sols. Because of the eccentricity of Mars' orbit, the seasons are not of equal length.
Short title: USGS Scientific Investigations Map 3292, mapsheet: Image title: Geologic Map of Mars: Author: Kenneth L. Tanaka, James A. Skinner, Jr., James M. Dohm ...
Short title: USGS, Scientific Investigations Map 3292, Description of Map Units: Image title: Geologic Map of Mars: Author: Kenneth L. Tanaka, James A. Skinner, Jr ...
[10] Mars Global Surveyor is predicted to orbit until 2046 (50 years after insertion). [11] Besides decaying to Mars, a collision with a moon or other spacecraft is also a possibility. [12] In March 2017, MAVEN had to change its orbit to avoid colliding with Phobos, and with an increasing number of spacecraft at Mars this risk increases. [13]
General Mission Analysis Tool (GMAT) is open-source space mission analysis software developed by NASA and private industry. [ 2 ] It has been used for several missions, including LCROSS , the Lunar Reconnaissance Orbiter , OSIRIS-REx , the Magnetospheric Multiscale Mission , and the Transiting Exoplanet Survey Satellite (TESS) mission.
The following outline is provided as an overview of and topical guide to Mars: Mars – fourth planet from the Sun and the second-smallest planet in the Solar System , after Mercury . Named after the Roman god of war , it is often referred to as the " Red Planet " [ 1 ] [ 2 ] because the iron oxide prevalent on its surface gives it a reddish ...