NASA discovers 10,000th near-Earth object

NASA has discovered the 10,000th near-Earth object (NEO) - a 1,000 feet (300 meters) wide asteroid named 2013 MZ5.

Asteroid to make close flyby of Earth on Saturday

An asteroid the size of a city block, will make its closest approach to Earth on Saturday, March 9th, less than 7 days after it was discovered, it has been revealed.