10 Psychedelic toucan
Who knows why the bird鈥檚 nose glows? Thermal video footage of a toucan shows that that a colourful bill does more than just attract mates.
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9 Light mill
Windmills have been around for centuries, but blades turned by light are a more recent invention. This clever design spins one way, then the other, depending on the wavelength of light used.
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8 Water on Mars
The European Space Agency鈥檚 Mars Express orbiter recently scanned Martian rocks and found signs of water. Don鈥檛 get your hopes up, though: the evidence is billions of years old.
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7 Solar music
Not content to be our solar system鈥檚 ultimate energy source, the sun is also a bit of a musician. But how do you tell a star that it needs more practice?
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6 Fluorescent cancer
Cancer can鈥檛 hide from a new drug that turns malignant tissue bright pink, making it easier for surgeons to see and remove.
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5 Robotic insects
A cricket-like jumper and a glider with jaws give a glimpse of future robotic insect swarms.
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4 X Prize action
Sustainable cars that are anything but boring: take a look at these exotic vehicles getting put through their paces.
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3 Inside-out algae
Multicelled algae bare their insides for all the world to see. It turns out that being many-celled isn鈥檛 as complicated as once thought.
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2 No country for old sats
闯补辫补苍鈥檚 Hayabusa satellite was the first to make contact with an asteroid. Its fiery homecoming shows it鈥檚 better to burn out than fade away.
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1 Worm attack
Roundworms that grow up with an ample supply of bacteria for food grow small mouths. Those that come up in dense populations grow big teeth鈥� the better to eat the neighbours.
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