Several sites are vying to be the final destination of the retiring space shuttles . The shuttles Discovery , Columbia and Atlantis have historic and economic value . Landing an orbiter will be huge . NASA administrator Charlie Bolden will announce Tuesday where the shuttles will go . April 1 marks the anniversary of the first human space flight and , 20 years later , the first manned flight .
Several sites are vying to be the final destination of the retiring space shuttles . The shuttles Discovery , Columbia and Atlantis have historic and economic value . NASA administrator Charlie Bolden will announce Tuesday where the shuttles will go . April 1 marks the anniversary of the first human space flight and , 20 years later , the first manned flight .