View Full Version : Earth's Second Moon is About to Leave Us

2006-Jun-12, 07:53 PM
In addition to the Moon, the Earth also has a collection of co-orbital satellites. These are really nothing more than asteroids briefly captured by the Earth's gravity. Instead of orbiting the Earth, they take corkscrew paths around our planet, eventually escaping back into the Solar System. One asteroid, 2003 YN107, has been traveling with us since 1999, and now it's about to depart, building up enough speed to escape the Earth's gravity.

Read the full blog entry (http://www.universetoday.com/2006/06/12/earths-second-moon-is-about-to-leave-us/)