We have company: Asteroid discovered in Earth’s orbit

The first known Earth Trojan asteroid, “2010 TK7” (represented by the green dots), sits in front of Earth at a gravitational “sweet spot” and poses no danger.

AFP/GETTY IMAGES

Lesley Ciarula Taylor

Staff Reporter

The Earth has its own well-behaved celestial Chihuahua on a leash.

Two Canadians astronomers are among a team that ha… (View original article)