Thinking about this in the context of Apollo 13, I'm wondering what could be done to prevent some or all of the science payload from re-entering the atmosphere.

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In addition, I want to thank Reverend Al Green for taking the time to be here. (Applause.) I took a chance at the Apollo -- (laughter) -- and I'm not going to take a chance again.

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Standing in our front yard watching a half moon over the Western horizon, I remember wondering whether the crippled Apollo 13 Command Module would ever see splashdown.

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At New York's Apollo Theater, we went down to the stage and I played them "My Girl" on the piano.

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Keen to catch the sunset, I raced through the quaint fishing village of Apollo Bay, and completely bypassed the Cape Otway Lighthouse, about 30km further on and open to visitors.

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As we were leaving the museum through the Rose Center for Earth and Space, past stunning images of the Apollo astronauts working on the surface of the moon, I asked her, for the record, why she'd never felt the urge to visit before.

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The Apollo program was a sort of collective ego boost for Americans, but again I would rank it as a sign of maturity that we no longer have need for hundred billion dollar self-esteem enhancements.

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"I never thought I was going to be on this stage, " Mayweather said as Apollo presentation wound down.

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