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Life on Mars - but 'we sent it'
There is life on Mars, a researcher has announced at a conference - unfortunately it is just spaceship-borne contamination.
"I believe there is life on Mars, and it's unequivocally there, because we sent it," Andrew Schuerger of the University of Florida told the Lunar and Planetary Science Conference in Houston, Texas, recently. He has been granted funding from NASA's planetary protection office to help develop better sterilisation techniques for future missions.
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Thought control tech tried on humans
Scientists who trained a monkey to move a mechanical arm using thought alone said on Tuesday that experiments in Parkinson's disease patients show the technique may work in humans, too.
Electrodes implanted in the brains of Parkinson's disease patients transmitted signals that might someday be used to operate remote devices, the team at Duke University Medical Center reported.
In 2000, Dr. Miguel Nicolelis, the neurobiologist who led the studies, made headlines when he trained a monkey to move a robotic arm using thoughts and electrodes implanted in her brain.
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Every file you ever owned on 1 disc
In 1974, Mike Thomas was making five-meg disk packs - the biggest in the world, at the time. But IBM, Burroughs, Honeywell and other major computer makers said no one would ever need that much storage. In 1989, Bill Gates said a PC would never need more than 256 kbytes of cache memory and 40 megabytes of hard drive storage. And yet today's PC has on average 64 megabytes of cache and 20 to 60 gigabyte hard drives. In short, Thomas predicted the need for mega storage systems in 1974, and he's still at it. In fact, as far as he's concerned, the need isn't diminishing - it's increasing.
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Closest asteroid to pass Earth approaches
An asteroid the size of a small office building will make the closest approach ever recorded to the Earth on Thursday evening
Discovered just two days ago by an automated telescope scanning the sky for near-Earth objects, asteroid 2004 FH will miss the planet by a mere 40,000 kilometres, just over a tenth of the distance to the Moon.
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Distant object could be 'tenth planet'
Pluto's title as the outermost planet could be in jeopardy, with the discovery of a large object orbiting the Sun far further out than any other.
The object, dubbed Sedna for the Inuit goddess of the sea, lies about 10 billion miles from the Sun, nearly twice as far as Pluto. Its estimated 2000-kilometre diameter is about 90 per cent the size of Pluto's, making Sedna the largest Solar System object discovered since Pluto itself in 1930.
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