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  2. Orbit of Mars - Wikipedia

    en.wikipedia.org/wiki/Orbit_of_Mars

    Extra-close oppositions of Mars happen every 15 to 17 years, when we pass between Mars and the Sun around the time of its perihelion (closest point to the Sun in orbit). The minimum distance between Earth and Mars has been declining over the years, and in 2003 the minimum distance was 55.76 million km, nearer than any such encounter in almost ...

  3. List of active Solar System probes - Wikipedia

    en.wikipedia.org/wiki/List_of_active_Solar...

    The oldest active spacecraft for Mars is 2001 Mars Odyssey. 2001 Mars Odyssey. Mission: Mars Odyssey was designed to map the surface of Mars and also acts as a relay for the Curiosity rover. [5] Its name is a tribute to the novel and 1968 film 2001: A Space Odyssey. Launched: 7 April 2001; Destination: Mars; Arrival: 24 October 2001 ...

  4. Astronomy on Mars - Wikipedia

    en.wikipedia.org/wiki/Astronomy_on_Mars

    The maximum angular separation of the Earth and Moon varies considerably according to the relative distance between the Earth and Mars: it is about 25′ when Earth is closest to Mars (near inferior conjunction) but only about 3.5′ when the Earth is farthest from Mars (near superior conjunction). For comparison, the apparent diameter of the ...

  5. List of objects at Lagrange points - Wikipedia

    en.wikipedia.org/wiki/List_of_objects_at...

    L 4 is the Sun–Earth Lagrange point located close to the Earth's orbit 60° ahead of Earth. Asteroid (706765) 2010 TK 7 is the first discovered tadpole orbit companion to Earth, orbiting L 4; like Earth, its mean distance to the Sun is about one astronomical unit.

  6. List of Solar System probes - Wikipedia

    en.wikipedia.org/wiki/List_of_Solar_System_probes

    Location Status Notes Image Ref WMAP: NASA: 30 June 2001 (launch) – October 2010 (end) [62] Sun-Earth L2 point success cosmic background radiation observations; sent to graveyard orbit after 9 years of use. [62] 2001-027A: Spitzer Space Telescope: NASA: 25 August 2003 (launch) – 30 January 2020 (end) Earth-trailing heliocentric orbit ...

  7. Mars - Wikipedia

    en.wikipedia.org/wiki/Mars

    Mars is the fourth planet from the Sun.The surface of Mars is orange-red because it is covered in iron(III) oxide dust, giving it the nickname "the Red Planet". [22] [23] Mars is among the brightest objects in Earth's sky, and its high-contrast albedo features have made it a common subject for telescope viewing.

  8. Mare Australe quadrangle - Wikipedia

    en.wikipedia.org/wiki/Mare_Australe_quadrangle

    The Mare Australe quadrangle is one of a series of 30 quadrangle maps of Mars used by the United States Geological Survey (USGS) Astrogeology Research Program. The Mare Australe quadrangle is also referred to as MC-30 (Mars Chart-30). [1] The quadrangle covers all the area of Mars south of 65°, including the South polar ice cap, and its ...

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