Scientists Build Portable Life-Signs Detector: Tricorder 1.0

A team of US and UK scientists have invented a portable scanner that may be useful in the hunt for life on Mars. And it sounds a whole lot like a Star Trek tricorder: it uses a beam of ultraviolet laser light and detects fluorescence from organic molecules, so it works remotely and doesn't damage samples. Under… » 6/24/08 9:15am 6/24/08 9:15am