SPACE
Earth calling: A short history of radio messages to ET From carefully crafted binary code to the sound of vaginal contractions, we round up humanity鈥檚 radio messages to the stars
TECHNOLOGY
Google Earth gets real Three-dimensional maps like Google Earth usually show the world as it used to be. A way to use live webcams to update the latest changes to buildings and streets lets them show it as it really is
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My Botox hell It鈥檚 a threat to facial expressions in Hollywood actors, but could the wrinkle treatment also be used in a bioterror attack? Unregulated production of Botox, the toxin that causes the deadly food poisoning botulism, has prompted fears that it could be used as a weapon
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COMPUTING
A step beyond multitouch As gadget lovers await an expected tablet computer from Apple, we review a series of patents for an interface like never before. It鈥檒l be a cinch to type without a keyboard, and you鈥檒l be able to activate buttons simply by hovering your finger over them
EVOLUTION
Bats and dolphins separately evolved same sonar gene The finding is unusual, because most creatures that independently evolved characteristics such as eyes, tusks or wings generally took different genetic routes to get there. Bats and dolphins, however, trod an identical genetic path to evolve a vital component of echolocation
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Maligned prion protein gets a new image Prion proteins have a bad reputation, notoriously causing variant Creutzfeldt-Jakob disease, but a new study suggests they are important in maintaining the myelin sheath that surrounds nerve cells, boosting the speed of nerve impulses