US scientists have constructed 3D brain-like tissue that can live for more than two months and allows real-time research on brain trauma, disease and recovery.The scientists discovered they could grow rat neurones in the tissue and then watch how it responded to an injury incurred by dropping a

Scientists may have identified the first known dust particles from outside our Solar System, in samples returned to Earth by a Nasa space mission. A team of scientists, with the help of more than 30,000 worldwide citizens, has identified seven exotic grains. The material was captured by the

Antibiotics given to infants may have life-long consequences, a study of mice suggests.Low doses of antibiotics given to pregnant mice and to their newborns led baby mice to become obese as adults, researchers report August 14 in Cell. The effect was not due to the drugs themselves but to the