From Wikiwand: Orbits of Phobos and Deimos (to scale)

From Wikiwand: Orbits of Phobos and Deimos (to scale)

Deimos, one of the two moons of Mars, is a teeny little guy with an average radius of just 6.2 km.

Deimos, one of the two moons of Mars, is a teeny little guy with an average radius of just 6.2 km.

Curiosity's view of Mars's moon Phobos passing in front of Deimos.

Curiosity's view of Mars's moon Phobos passing in front of Deimos.

1981: A true-colour photograph of Saturn, taken by Voyager 2 from a distance of 34 million kilometres, shows the moons Rhea and Dione as white dots beneath the planet. 	 NASA/JPL-Caltech

1981: A true-colour photograph of Saturn, taken by Voyager 2 from a distance of 34 million kilometres, shows the moons Rhea and Dione as white dots beneath the planet. NASA/JPL-Caltech

Illustration comparing apparent sizes of moons between Mars's Deimos, Phobos and Earth's Moon

Illustration comparing apparent sizes of moons between Mars's Deimos, Phobos and Earth's Moon

Apparent Retrograde Motion of Mars - This animation shows the apparent retrograde motion of Mars in 2003, as seen from Earth - Created by : Eugene Alvin Villar (seav), as part of the Philip Greenspun illustration project

Apparent Retrograde Motion of Mars - This animation shows the apparent retrograde motion of Mars in 2003, as seen from Earth - Created by : Eugene Alvin Villar (seav), as part of the Philip Greenspun illustration project

Phobos: Doomed Moon of Mars (Oct 28 2012)  Image Credit: HiRISE, MRO, LPL (U. Arizona), NASA  Explanation: This moon is doomed. Mars, the red planet named for the Roman god of war, has two tiny moons, Phobos and Deimos, whose names are derived from the Greek for Fear and Panic. These martian moons may well be captured asteroids originating in the main asteroid belt between Mars and Jupiter or perhaps from even more distant reaches of the Solar System. (...) #Mars #space

Phobos: Doomed Moon of Mars (Oct 28 2012) Image Credit: HiRISE, MRO, LPL (U. Arizona), NASA Explanation: This moon is doomed. Mars, the red planet named for the Roman god of war, has two tiny moons, Phobos and Deimos, whose names are derived from the Greek for Fear and Panic. These martian moons may well be captured asteroids originating in the main asteroid belt between Mars and Jupiter or perhaps from even more distant reaches of the Solar System. (...) #Mars #space

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