Trojan asteroids - objects that share gravitational pulls with larger bodies, like planets – have been discovered hovering in space along with Jupiter, Neptune, Mars, Saturn and now, Earth. According to National Geographic, our homeworld’s first, newfound Trojan is around 1,000 feet wide and is positioned roughly 50 million miles from Earth.
source: http://digitaljournal.com/article/331801#ixzz25FsYoOv4
