Asteroids have been of continued interest and research among scientists and the general public. This issue's Topic in Depth explores some of the Internet's offerings on the subject. From Spaceflight Now, the first site (1) is an April 7, 2002 article that describes new research, showing that "there are between 1.1 million and 1.9 million 'space rocks' larger than 1 kilometre in diameter in the...

This site displays the first-ever images of a large, double asteroid once assumed to be a single asteroid called Antiope. The images were recently released by the Southwest Research Institute (SWRI). Each asteroid in the pair is approximately 50 miles across, separated by about 100 miles. This discovery was made using the W.M. Keck Observatory, Mauna Kea, Hawaii. Images of another discovery, that...