Astronomers detected an
asteroid which follows the orbit of the Earth around the sun. The rock-between
200 and 300 meters in diameter and 2010 TK7-christened it the Trojans, which
are those that share an orbit with a planet near stable points. Because they
remain in front of or behind the planets in the same orbit, never collide with
them.
According to the
science specialist for the BBC, Jonathan Amos, it is a fascinating finding
because the relative stability and proximity of the Trojan asteroids makes them
potential targets for future space missions, when they go beyond the
International Space Station (EEI).