Sweating appears to be an essential part of the body?s defense against bacteria. Birgit Schittek and her team at the University of T
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The aurora borealis is appearing across the country, as far south as California and Georgia. If you look up in the sky, you?re likely to see a shimmering display of red and green lights. The colorful streaks, also known as the Northern Lights, are rarely seen south of Canada and Alaska.
They could be seen on Monday night beginning around 8:50 p.m. EST, as broad blue and green spiked bands, tinged with brilliant red areas. The sky was ?almost like a fluorescent red,? according to Rick Anderson in West Virginia. ?What was really awesome was I looked through my back yard, where I could see the horizon, and it looked like rays coming from the ground up into the sky,? he says.
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With all the news coming out about terrorist attacks, we tend to forget about our old nemesis, the ozone hole. How big is it this year, anyway?
Each year around August the ozone hole begins to open as light from the springtime Sun over the Antarctic triggers the chemistry of ozone destruction. It contracts again in December.
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Scientists have discovered the first evidence that a devastating meteor impact in the Middle East might have triggered the mysterious collapse of civilizations there more than 4,000 years ago.
Studies of satellite images of southern Iraq have revealed a two-mile-wide circular depression which scientists say looks like an impact crater. The meteor impact would have been equivalent to hundreds of nuclear bombs, causing devastating fires and flooding.
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