ScienceBetter than Google Maps? Reason behind existence of ancient Peruvian rock lines solved Ancient lines of rock in Peru may have been an ancient sort of advertising, researchers say. The lines point to centers thought to host trade and ceremonial events around 300 B.C.by Jim Algar
RoboticsStar Wars-inspired prosthetic arm 'Luke' approved by FDA, gives new hope to amputeesby Jim Algar
ScienceSoy sauce element, yawning cause, sun's sibling are among top 5 scientific revelations of the weekby Judy Mottl
Healthy Living/WellnessThink you're too old at 40 to be an endurance athlete? You're way wrong, says studyby Judy Mottl
ScienceWHO warns of air pollution levels in major urban centers, New Delhi has dirtiest airby Alexander Saltarin
TechISPs in UK to notify illegal downloaders. Is this enough to combat Internet piracy?by Nicole Arce