Today on New Scientist: 20 October 2011

Superconducting disc locked in upside-down levitation

Watch a superconducting plate hover in any orientation over a track of permanent magnets - and find out how

Harness viruses to make dazzling colours without dye

Vibrant colours that arise from the reflections of intricate patterns of virus particles could be the secret to bleach-resistant clothing

September photo contest winners: Farms and gardens

The winner of September's photo competition on farms and gardens transported us to a Chinese highland ranch

Was Sybil a psychiatrist's creation?

Sybil Exposed by Debbie Nathan reveals that the true story behind the famous multiple personality case is more startling than the screen legend

Zoologger: Female monkeys indulge in synchronised sex

In a bid to mate with as many males as possible, female Assamese macaques coordinate when they're willing to have sex

Another stunning Archaeopteryx fossil found in Germany

The nearly complete fossil - missing only its head - is the 11th ever found

Chatbots fail to convince judges that they're human

Put Skynet on hold: computers are nowhere near being able to mimic the conversation of their human masters

They said it couldn't be done: 7 impossible inventions

Rockets? Blue lasers? Don't make me laugh, they said. New Scientist celebrates the crazy technologies we use every day

Volcano-eating beavers evolved thicker teeth

The volcanic activity that shaped Yellowstone national park may have sculpted something on a much smaller scale too - the teeth of some rodents

Drug addicts switch to inject in economic decline

During economic recession, drug addicts switch from inhaling to injecting drugs

Wildlife Photographer of the Year winning photos

The winning photos from the overall and young Wildlife Photographer of the Year both feature surprising views of birds

Comets may be creating oceans on alien planet

The icy bodies have been caught battering an exoplanet for the first time, infrared observations suggest

Chronic fatigue syndrome eased by cancer drug

Rogue white blood cells are implicated as a cause of disease - and clearing them with a cancer drug relieves symptoms

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