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2. Mars cycler - Wikipedia

   en.wikipedia.org/wiki/Mars_cycler

   Neither orbit is perfectly circular; Earth has an orbital eccentricity of 0.0168, and Mars of 0.0934. The two orbits are not quite coplanar either, as the orbit of Mars is inclined by 1.85 degrees to that of Earth. The effect of the gravity of Mars on the cycler orbits is almost negligible, but that of the far more massive Earth needs to be ...

3. Cycler - Wikipedia

   en.wikipedia.org/wiki/Cycler

   A lunar cycler or Earth–Moon cycler is a cycler orbit, or spacecraft therein, which periodically passes close by the Earth and the Moon, using gravity assists and occasional propellant-powered corrections to maintain its trajectories between the two. If the fuel required to reach a particular cycler orbit from both the Earth and the Moon is ...

4. Areosynchronous orbit - Wikipedia

   en.wikipedia.org/wiki/Areosynchronous_orbit

   An areosynchronous orbit that is equatorial (in the same plane as the equator of Mars), circular, and prograde (rotating about Mars's axis in the same direction as the planet's surface) is known as an areostationary orbit (AEO). To an observer on the surface of Mars, the position of a satellite in AEO would appear to be fixed in a constant ...

5. New 3-D map of Mars' ice caps reveal hidden structures - AOL

   www.aol.com/news/2017-01-05-new-3-d-map-of-mars...

   Scientists have announced the discovery of structures like layering and potential impact craters which had been hidden under Mars’ polar ice caps. New 3-D map of Mars' ice caps reveal hidden ...

6. New gravity map sheds light on Mars' mysterious interiors - AOL

   www.aol.com/news/2016-03-22-new-gravity-map...

   NASA has spent years sending spacecraft and rovers to Mars in an effort to unlock some of the planet's incredible mysteries. New gravity map sheds light on Mars' mysterious interiors Skip to main ...

7. Geology of Mars - Wikipedia

   en.wikipedia.org/wiki/Geology_of_Mars

   The polar ice caps are well-known telescopic features of Mars, first identified by Christiaan Huygens in 1672. [42] Since the 1960s, we have known that the seasonal caps (those seen in the telescope to grow and wane seasonally) are composed of carbon dioxide (CO 2 ) ice that condenses out of the atmosphere as temperatures fall to 148 K, the ...

8. Areocentric orbit - Wikipedia

   en.wikipedia.org/wiki/Areocentric_orbit

   An areocentric orbit is an orbit around the planet Mars. The areo- prefix is derived from Ares , the Greek equivalent of the Roman god Mars . The name is analogous to the term geocentric orbit for an orbit around Earth and heliocentric orbit for an orbit around the Sun.

9. Orbit of Mars - Wikipedia

   en.wikipedia.org/wiki/Orbit_of_Mars

   Mars has an orbit with a semimajor axis of 1.524 astronomical units (228 million km) (12.673 light minutes), and an eccentricity of 0.0934. [ 1 ] [ 2 ] The planet orbits the Sun in 687 days [ 3 ] and travels 9.55 AU in doing so, [ 4 ] making the average orbital speed 24 km/s.