Studies Suggest Unknown Form of Matter Exists - (New York Times - July 31, 2002)

"Painstaking observations of a kind of subatomic dance suggest that the universe may contain a shadowy form of matter that has never been seen directly and is unexplained by standard physics theories, a team of scientists announced yesterday. The studies appear to confirm similar findings the scientists reported last year. The research involves muons, rare subatomic particles similar to electrons but 207 times as heavy."

"Imagine taking a one-mile walk where every step transports you a million years in time! A Walk Through Time … from stardust to us takes you on just such a journey. In a series of 90 panels of text and illustrations, this innovative traveling exhibit tells the story of life's five-billion-year evolution. ...

Walk Through Time exhibits have been shown around the world—in Europe, Asia, Africa, and the Americas—and the text has been translated into German and Spanish. Businesses, communities, conferences, institutions, museums, universities, and others have displayed or purchased copies of the Walk for both indoor and outdoor exhibits.

The Walk Through Time Online offers those who are unable to visit the physical exhibit an opportunity to experience this dramatic story. The virtual experience has been specially formatted to offer online visitors a compelling interaction with the material contained in the original 90-panel exhibit."