The white dot screaming through the sky at 20 times the speed of sound wasn't around for long, but researchers say it was long enough to provide some important information. Video (scroll down to view) ...

Fed Ex pilot Gordon Boettger said he has flown east across the country and looked out the window of the Boeing 777 and pictured making the same flight in a glider. On Dec. 19, Boettger and co-pilot ...