RT @airandspace: New exhibition opening in 1 week at the Museum in DC! Outside the Spacecraft: ow.ly/GGaEW #Spacewalk50 http://t.co/Um18vhTWCR
RT @airandspace: New exhibition opening in 1 week at the Museum in DC! Outside the Spacecraft: ow.ly/GGaEW #Spacewalk50 http://t.co/Um18vhTWCR