Seal a cat inside a box with a radioactive atom, a radiation detector and a mechanism capable of releasing poison. Arrange the experiment so that, after an hour, the atom has a 50 percent chance of having decayed. If it decays, the detector...
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Nelson Mandela did not die in a South African prison in the 1980s. He was released in 1990, became South Africa’s first Black president in 1994 and died in 2013 at the age of 95. Yet some pe...
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Imagine exchanging messages with an unseen stranger. The replies are witty, coherent and sensitive to context. The stranger remembers what you said earlier, catches a joke, explains a diffic...
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You may already have yawned simply because you read the word. If not, there is a reasonable chance that a photograph or video of someone opening their mouth in a long yawn would do the job....
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There is a place on Earth where Mount Everest could be lowered beneath the waves and its summit would still remain underwater. It lies in the western Pacific, in the Mariana Trench, where th...
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Near the heart of the Milky Way lies a cloud with a reputation that sounds invented for a science-fiction cocktail menu. Sagittarius B2 contains alcohol. It also contains ethyl formate, an o...
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Imagine putting the entire Solar System on a cosmic scale: the eight planets, every known moon, the asteroids, comets, dwarf planets, dust and the enormous Sun. The result would be absurdly...
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In the Chihuahuan Desert of northern Mexico, where Durango, Chihuahua and Coahuila approach one another across an immense dry basin, a patch of landscape has acquired one of the strangest re...
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In 1929, while scholars were cataloguing manuscripts in Istanbul's Topkapı Palace, they encountered a fragment of an extraordinary world map. Painted in vivid colors on parchment traditional...
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In 1901, divers working an ancient shipwreck near the Greek island of Antikythera recovered statues, ceramics, glass and a badly corroded mass of bronze. The wreck had carried valuable cargo...
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