Three female astronauts of the space shuttle Discovery crew, from left, Naoko Yamazaki, Stephanie Wilson and Dorothy Metcalf-Lindenburger, leave the Operations and Checkout building on their way to board the shuttle on launch pad 39A at the Kennedy Space Center in Cape Canaveral, Fla.

First published in the April 05, 2010, 7:21 a.m. edition

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