Nell Greenfieldboyce July 28, 2016 20160728_atc_the_mystery_of_the_fireball_that_lit_up_the_western_sky.mp3 Listen • 1:47 20160728_atc_the_mystery_of_the_fireball_that_lit_up_the_western_sky.mp3 Copyright 2016 NPR. To see more, visit http://www.npr.org/. Nell Greenfieldboyce
