"Dragon's blood" may sound like an exotic ingredient in a witch's brew or magic potion. But researchers in China are reporting that the material -- which is actually a bright red plant sap used for thousands of years in traditional Chinese medicine -- con

Heather Hallen spent eight years looking for poison in all the wrong places.

In any one day, homeland security and law enforcement agencies might sift through thousands of complex and often contradictory clues about potential terrorist threats. To thwart another September 11, analysts must meld the encyclopedic eye of Google-age t

Ranch families working viable ranches that sustain ecosystem services and contribute to the social fabric and local economies are critical to a West that works, says Dr. Richard Knight. This perspective is provided in more depth in a new article from the

A population study of microbes in Yellowstone National Park hot pools suggests viruses might be buoyed by steam to distant pools. The result could help to answer some fundamental questions about how microbes, and the viruses that infect them, impact thei

The colors of the sunset result from a phenomenon called scattering, says Steven Ackerman, professor of meteorology at UW-Madison. Molecules and small particles in the atmosphere change the direction of light rays, causing them to scatter.

Imagine paint that adheres to a surface, but releases on command or road signs that change their reflectivity with changing weather conditions.

A 110 million-year-old dinosaur that had a mouth that worked like a vacuum cleaner, hundreds of tiny teeth and nearly translucent skull bones was unveiled Thursday, Nov. 15, at the National Geographic Society.

Using a device composed of microscopic rooms and hallways that was designed and fabricated at the University of California, San Diego, a team of researchers from four institutions has determined how bacteria self-organize during the early stages of colony

The NASA/ESA Hubble Space Telescope has probed the bright core of Comet 17P/Holmes which, to the delight of sky watchers, mysteriously brightened by nearly a million-fold in a 24-hour period beginning October 23, 2007.