Asteroid Vesta will fly by Earth tonight, June 14, 2012 at 14 lunar distances or 3.35 million miles away or 14 times the distance between Earth and the moon. The asteroid is named 2012 LZ1 and astronomers believe it’s about 1,650 feet (500 meters) wide. With that type of size and near-Earth proximity, the Vesta asteroid or 2012 LZ1 qualifies as a potential threat to Earth. For an asteroid to...