For 10 points, name this moon that is both closer to Mars and larger than its neighbor, Deimos.
A Russian mission to this moon, "Grunt," had its launch delayed from October 2009 to 2011. The Kaidun meteorite is thought to be a remnant of this moon. The largest crater on this moon is the Stickney crater. Iosif Shklovksy claimed that this moon was of (*) artificial origin while attempting to explain why it is slowly spiraling into the planet it orbits. For 10 points, name this moon that is both closer to Mars and larger than its neighbor, Deimos.
A Russian mission to this moon, "Grunt," had its launch delayed from October 2009 to 2011.
{Phobos}