You've probably noticed the colorful patterns "reflecting" from the shiny surface of a CD disk. What you are seeing is actually diffraction of white light, and the rainbows of color are diffraction patterns. In this project you'll learn...

This slideshow explains how satellites are used to measure the movement of tectonic plates.

A report on US attempts to detect the "gravity waves" that Einstein predicted. Laser Interferometer Gravitational-Wave Observatories in Louisiana and Washington, looking for "Tremors in the fabric of space-time," are described in words...