'Nanospider' robots could target disease

Researchers have created and programmed robots the size of single molecules that can move independently and even make tiny products themselves.

Logic chips built from DNA

A Duke University engineer says he can produce more simple logic circuits in a day than the world's entire monthly output of silicon chips.

Neanderthal genome sequenced - and they interbred with us

Scientists have sequenced the complete Neanderthal genome, and discovered that modern humans are as much as two percent Neanderthal ourselves, thanks to comparatively recent interbreeding.