1.   Here is a gravitational field device to draw down orbiting objects on to a preprogrammed landing site.

2.   And by continually colliding with and abrading larger orbiting objects, dust begets more dust.

3.   The telescope can detect orbiting objects as small as one-half inch across as they pass overhead.

4.   The system will be able to measure the size, shape and path of orbiting objects.

5.   The U.S. State Department said Tuesday it has not been able to observe any orbiting object which correlates with data provided by North Koreans in public statements.