** CORRECTS DATE OF EVENT TO MAY 18, 2011 ** In this undated picture made available by NASA, a technician examines the Alpha Magnetic Spectrometer at Kennedy Space Center in Cape Canaveral, Fla. The ... more 
** CORRECTS DATE OF EVENT TO MAY 18, 2011 ** In this undated picture made available by NASA, a technician examines the Alpha Magnetic Spectrometer at Kennedy Space Center in Cape Canaveral, Fla. The mammoth cosmic ray detector arrived at the International Space Station on Wednesday, May 18, 2011, a $2 billion experiment that will search the invisible universe and help explain how everything came to be. less 
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Associated Press | Photo By NASA, Glenn Benson
Wed, May 18, 2011 5:24 PM EDT