/tags/challenger-mission challenger mission en-US SA¹ú¼Ê´«Ä± Thu, 28 Jan 2016 14:38:31 GMT /2016-01-28/us-sen-bill-nelson-recalls-challenger-disaster-30-years-on Many Americans watched in shock as the Space Shuttle Challenger disintegrated over the Florida sky 30 years ago. U.S. Senator Bill Nelson, D-FL, was one... Thu, 28 Jan 2016 14:38:31 GMT /2016-01-28/us-sen-bill-nelson-recalls-challenger-disaster-30-years-on Roberto Roldan