Front-row seats at the Discovery welcome ceremony April 19 at the Udvar-Hazy Center are reserved for astronauts who served on the space shuttle. (Photo by John Gibbons)

Published April 20, 2012 at 720 × 478 in A very special delivery
Front-row seats at the Discovery welcome ceremony April 19 at the Udvar-Hazy Center are reserved for astronauts who served on the space shuttle. (Photo by John Gibbons)

Front-row seats at the Discovery welcome ceremony April 19 at the Udvar-Hazy Center are reserved for astronauts who served on the space shuttle. (Photo by John Gibbons)

Front-row seats at the Discovery welcome ceremony April 19 at the Udvar-Hazy Center are reserved for astronauts who served on the space shuttle. (Photo by John Gibbons)

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