January 28, 2016 6:25 pm Challenger Victims Remembered Thirty years after the space shuttle exploded, killing teacher Christa McAuliffe, Bob Veilleux reflects on his status as her alternate. US & World Videos 2:50 Rally held in Boston in support of Jewish college students 0:16 4 people seriously hurt after boat sinks off Cape Cod 24:50 @Issue: Biden signs the foreign aid bill, and a retrospective of Boston's 2024 Olympics bid 3:05 100 protesters detained at Northeastern University 2:39 Community mourns police sergeant killed on duty