Asteroid ahead

An asteroid is set to pass relatively close to the earth this evening. Named 2005 YU55, the giant rock, about 400 metres (1,3000 feet) in diameter, will pass the closest it has ever been in the past 200 years, but still far enough away to avoid any danger of impact. The asteroid is estimated to be travelling at about 29,000 mph and will be about 201,700 miles (324,600 kilometers) away — closer than the moon, which orbits at an average 384,499 km (238,864 miles) from the earth.