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To some extent, what are called “chemtrails” are caused by global warming, since the stratosphere, where planes fly, is getting colder, now that greenhouse gasses are trapping warmth in the troposphere, just below it. This causes jet contrails to freeze, so they remain visible for longer periods of time. Instead of dissipating harmlessly, some of them fall to earth as large blocks of ice. Reflective particles are also sometimes sprayed into the sky in an anti-terrorist effort to peer around the curvature of the earth. But the researchers who study chemtrails are not fully satisfied with either of these explanations.
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As you walk down a suburban street or take a stroll in the woods, do you ever wonder what the first trees looked like? Scientists now know the answer to that question because they have found some tree trunks that are 380 million years old?in a forest in New York State!
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Stem cells are seen as the future of medicine, but the current administration’s opposition to creating them from human embryos has caused scientists to get creative. Now Ian Wilmut, who cloned Dolly the sheep over ten years ago, says that animal embryos can perform the same function.

Wilmut thinks the solution is to inject human DNA into animal egg cells. A nucleus from a diseased person’s cell would be placed into an animal egg from which the nucleus has been removed.
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Last year, we wrote about a 1961 experiment at Yale in which a psychologist discovered that ordinary people would give deadly electric shocks to people they didn’t know, despite the fact that they could hear their screams, if they were directed to do so by “authority figures.” What would you have done? To find out, take this morality test.
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