Social media sites challenge Google's dominance of internet searching
Daniel James Devine | Political trends and commodity prices are pushing forward a controversial way to produce domestic energy
NASA seeks increase in the budget for detecting and dealing with 'near-Earth objects'
The deadly disease cholera menaces vulnerable victims from Haiti to West Africa
3D technology allows companies to 'print' everything from jewelry to prosthetic limbs
As genetically modified fish gain FDA approval, critics are pushing for labels
Investigation reveals that children's websites are tracking kids' internet use
Debate rages over the fate of the Neanderthals
