Asteroid 2011 MD is going to be so close to earth on Monday that it will actually be within the orbits of our GPS satellites. Earth’s gravity will slingshot the asteroid around the planet and back into space. Check out the story on discoverynews.com. (Be sure to follow the links if you want more information.) You can also find some more neat animations created by Pasquale Tricarico of the Planetart Science Institute here. Cool!