The astronomer and the witch – how Kepler saved his mother from the stake

When Kepler was at the very height of his scientific career, his mother was accused of witchcraft. By Ulinka Rublack.
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Linguistic Anarchy! It's all Pun and Games Until Somebody Loses a Sign

The pun is in an interesting bind: it is both ubiquitous and reviled. Chi Luu tries to understand why.
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Everything We Think We Know About Addiction Is Wrong

What causes addiction? Easy, right? Drugs cause addiction. But maybe it is not that simple.
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Black Hole Has Major Flare

The baffling and strange behaviors of black holes have become somewhat less mysterious, with new observations from two NASA missions.
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Notes on the Fourth Dimension

Hyperspace, ghosts, and colourful cubes - Jon Crabb on the work of Charles Howard Hinton and the cultural history of higher dimensions.
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29th October 1998 - John Glenn returns to space

Nearly four decades after he became the first American to orbit the Earth, Senator John Hershel Glenn, Jr., is launched into space again as a payload specialist aboard the space shuttle Discovery. At 77 years of age, Glenn was the oldest human ever to travel in space.
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Will Clean Tech make Fossil Fuels more Expensive?

Renewables are getting cheaper all the time. Interestingly, they may also drive up the cost of the competition.
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