But there are also other hazards from space. Thousands of nut, bolts, and other debris from space missions from an orbiting garbage dump. Some of there bits and pieces fall back into Earth's atmosphere and behave just like any other meteor, lighting up the sky like a "falling star." According to NASA, there must be over 100,000 objects with a diameter of one to ten centimeters floating around space. The number of fragments less than one centimeter could be in the millions.