A 14-year-old in a Colorado farm town built a robotic hand from LEGO bricks, fishing line and surgical tubing, then met a 7-year-old at a science fair wearing an $80,000 prosthetic arm she had already outgrown — his next version, 3D-printed, came in under $400, and NASA took him on as an intern at 17
Germany’s political center suffers historic blow, Turkey weighs coming to Saudi Arabia’s aid, Major TV networks support outlets banned from White House