Stability of the Solar System essentially the distance from sun to earth). These are now known as the Kirkwood gaps. Some asteroids were later discovered to orbit in these gaps, but their orbits are unstable and they will eventually break out of the resonance due to close encounters with a major planet. Another common form of resonance in the Solar System is spin–orbit resonance, where the period of spin (the time it takes the planet or moon to rotate once about its axis) has a simple numerical relationship with its orbital period. An example is our own Moon, which is in a 1:1 spin–orbit resonance
Battle for Terra 1,159 theaters with an average of $934 per theater. The film's international box office began May 14, 2009 in Russia with a 5th place opening of $332,634 at 83 screens. "Battle for Terra's" current worldwide total is $6,101,046. Battle for Terra Battle for Terra, originally screened as Terra, is a 2007 American 3D computer animated action-adventure science fiction film, based on a short film of the same name about a peaceful alien planet which faces destruction from colonization by the displaced remainder of the human race. The film was directed by Aristomenis Tsirbas who conceived it as a hard-edged live