First we find a new planet now we have TWO moons?? And just think, it's not even 2012 yet...
Cornell University's Mikael Granvik, Jeremie Vaubaillon and Robert Jedicke have calculated the population of "irregular natural satellites that are temporarily captured" near Earth.
They are calling them secret moons...that come and go quietly and without notice, ... and have been detected at least once.
Now that we know they come and go, and there's always one around, astronomers can work in detecting them. Once we detect one, we can send a few astronauts to analyze it.