The suited STS-121 crew members stride out of the Operations and Checkout Building on their way to Launch Pad 39B for a simulated countdown. Credit: NASA/Kim Shiflett. Click to enlarge.
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The suited STS-121 crew members stride out of the Operations and Checkout Building on their way to Launch Pad 39B for a simulated countdown. Credit: NASA/Kim Shiflett. Click to enlarge. |
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