How chameleons get their colour

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Chameleons don't use pigments to change colour - they rely on a bit of nanocrystal trickery. Even the scientists were surprised! For our tech-heads, we've got a top 5 to-do list for the large hadron collider, and some great Australian moments in 20th century technology - the discovery of infrasound, and the story of Wi-Fi. And meet our top 5 under 40 winning scientists - they'll blow your mind!
Top news stories of the week Chameleon's colour magic revealed Humans have long been fascinated by chameleons changing colour to dazzle mates, scare rivals and confuse predators, now scientists have uncovered the mechanism behind the feat. Too much praise helps create narcissistic kids Overvaluing and overpraising children can contribute to the development of narcissism, researchers have found. Milky Way may be 50 per cent bigger than thought Sheep use their brains to save water Speeding star accelerated by exploding companion
What's new Five more mysteries for the Large Hadron Collider to solve ATOM SMASHER'S BIG TO-DO LIST | The Higgs boson was so 2012! From WIMPS to killer strangelets - with extra power the collider could open up more unexplored realms of particle science, writes Stuart Gary. The story of Wi-Fi VIDEO FROM THE VAULT | How a team of Australian radio astronomers solved the problem of high-speed wireless internet. Science of war 2: spotting enemy guns using toilet-inspired technology GREAT MOMENTS IN SCIENCE | Towards the middle of World War 1, an Australian physicist at the front was lifted off the toilet seat one too many times. In part 2 of this series, Dr Karl explains how sound ranging technology changed the course of the war. Astronauts finally see New Zealand without cloud EARTH IMAGE | This is New Zealand as seen from the International Space Station as it orbits 418 kilometres above the South Pacific Ocean. Electrifying dust devil on the surface of Mars STARSTUFF IMAGE OF THE WEEK | Late in the northern Martian spring the Hirise camera aboard NASA's Mars Reconnaissance Orbiter detected this whirlwind tracking across the flat, freeze dried Amazonis Planitia region of the red planet. CERN's supercollider enters new frontiers STARSTUFF PODCAST | The world's largest atom smasher is back on line this month. Also; astronomers catch a naked speeding star, and Mars once had a giant ocean.
Catch up with ABC Radio and TV Listen to more science on ABC RN Watch ABC TV science shows on iView    Infrared observations used to home in on dark energy (Science Show, ABC RN)    Merchants of Doubt (Science Show, ABC RN)    Reduced red meat consumption aids health and the environment (Science Show, ABC RN)    Top 5 under 40 winners (Science Show, ABC RN)    Research Filter: Spider-venom pain relief and stressed teens (Drive, ABC RN)    We live in a greenhouse with no vents (Ockham's Razor, ABC RN)    Some prescription drugs may be of no benefit or even harmful (Health Report, ABC RN)    Responsible data-sharing for clinical trials (Health Report, ABC RN)    Into the light (RN Future Tense, ABC RN)    Tech Tuesday with Angus Kidman (Drive, ABC RN)    Where Birdsong Began (Catalyst)    Super Solar Cells (Catalyst)    Life On The Reef - Spring (ABC iView)    How We Got To Now - time (ABC iView)
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In the Sky this Week, with Ian Musgrave Thursday March 12 to Thursday March 19 The Last Quarter  Moon is Saturday March 14. Venus is prominent in the twilight evening sky. Mars is lost in the twilight. Jupiter is the brightest object in the late evening sky. Saturn is in the head of the Scorpion and is visited by the waning Moon on March 13. Mercury is prominent in the morning sky and is visited by the Moon on the 19th. Globe at Night light pollution survey starts. Read more»