Saturday, December 4, 2010

APOD 2.5

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In the photo "Martian Moon Phobos from Mars Express", spacecraft Mars Express took a mesmerizing photo of the Martian moon Phobos, the largest of Mars' two moons. Mars' moons are minuscule in comparison to all other planets' moons, and are believed to be just asteroids from the asteroid belt being caught in Mars' gravitational pull. What I found most interesting about the moon Phobos is that its orbit is continuously decaying, which means that in a matter of time the moon will actually be ripped apart by Mars. My question is, would this result in a ring system around Mars? Saturn's rings are hypothesized to have been created the same way, as disintegrating moons continued their orbits around their planet. A Mars with rings would definitely be an interesting sight. Ultimately, this photo of Phobos is extremely interesting, providing insight on one of Mars' two moons. 

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