BACKSTORY | Mining stories from a world full of wonder

Amy Lewis | Cochlear implants build bridges between the hearing and the deaf—but not everyone wants to cross

BACKGROUNDER | Evaluating environmental claims about natural gas cooking amid a regulatory clampdown

As NASA chugs along with missions to the moon and beyond, experts weigh in on the international frenzy to explore space

A research team at the University of Pittsburgh is working to help stroke victims regain the use of their arms