Earth has captured a second moon

Well, this is awkward. Earth's relationship with the moon is no longer a monogamous one. Scientists have identified a second, mini-moon orbiting our planet that has probably only been around for about 100 years, reports NASA.

This second moon looks to be a recently captured asteroid, and like a mistress, its subtle dance with Earth may be fleeting, only sticking around for a few centuries.

Still, it's a remarkable event that proves just how dynamic our gravitational relationship is with near-Earth objects.

Read more...http://www.mnn.com/earth-matters/space/stories/earth-has-captured-second-moon-says-nasa