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Identity of Stonehenge Builder

February 12, 2003
The famous prehistoric construction of Stonehenge in the U.K. is fascinating because, like many other megalithic structures, no one knows exactly how or why it was built. It's in the part of Great Britain that has become famous for elaborate... continued

Cellphones May Cause Alzheimers

February 12, 2003
Talking on cellphones is the leading cause of crashes caused by driver distraction, according to the California Highway Patrol. Maybe this is because new evidence shows that cellphones may trigger the early onset of Alzheimer's disease. Studies of rats in... continued

We’re Living a Toxic Life

February 12, 2003
Recent studies show that Americans are absorbing toxic chemicals in their bodies as part of everyday life. We're ingesting low levels of chemicals simply by eating, drinking, breathing and touching things. There are more than 70,000 chemicals used in the... continued

North Korea Nuke Could Hit U.S.

February 12, 2003
According to the CIA, North Korea has a ballistic missile capable of hitting the United States. When CIA Director George Tenet was asked by the Senate if North Korea can hit us, he said, "I think the declassified answer, is... continued

Why Do We Hiccup?

February 11, 2003
Scientists finally think they may be able to explain why we get the hiccups. French researchers think it may be because our ancient ancestors lived in the sea and had gills. Scientists have been searching for the reason we hiccup... continued

Glacier Turns into Lake

February 11, 2003
A new lake has been born in Nepal, that's half a mile long and over 300 feet deep. It's also 4 miles above sea level, because twenty-five years ago it was a glacier. "It's an important piece of evidence that... continued

How Iraq Wargame Plays Out

February 11, 2003
In the Gulf War 2 online game, players assume the role of President Bush. About 20,000 people play the game every day. It starts with Baghdad's quick fall, but that doesn?t mean the war is over. There's an Iraqi anthrax... continued

Shuttle Broke Up in Mystery Atmosphere

February 11, 2003
The space shuttle Columbia broke up in a mysterious area of the upper atmosphere called the ionosphere, which is filled with free electrons?or ions?that can reflect electromagnetic energy, producing strange electrical effects like "elves," "sprites" and "blue jets." Until recently,... continued

Wear an Invisible Spring Coat

February 10, 2003
A Tokyo professor may have been inspired by rumored U.S. invisibility camouflage for fighter jets, which makes the lower surfaces of an airplane project an image of the sky above it, rendering the plane invisible. He's applied this technique to... continued

And Hay Fever Too

February 10, 2003
Global warming is making the hay fever season last longer, because trees and grasses are sprouting earlier than normal. "Higher temperatures and climate change is adding to people's woes still further. This really is the first time there has been... continued