Editor's picks
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Ig Nobel prize for discovery that opera is good for a mouse's heart
The Ig Nobels also recognised work on dung beetle navigation, walking on water, and predicting when cows will sit down
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Gears evolved in nature long before humans 'invented' them
The gears in the hind legs of an insect called Issus work in a similar way to those of bicycles and car gear-boxes
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Voyager 1 leaves solar system
Nasa scientists say they believe the spacecraft has now reached interstellar space, beyond the influence of the sun
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My Brief History: a memoir by Stephen Hawking – review
The brevity of Stephen Hawking's memoir makes for a powerful profile of the cosmologist's life, writes Ian Sample
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Blobfish voted world's ugliest animal
Deep-sea creature crowned winner of a competition to raise awareness of endangered and aesthetically challenged animals