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The Moon may not be quite as appealing as Mars, but it's still a complex and poorly understood worl
The Moon may not be quite as appealing as Mars, but it's still a complex and poorly understood worl
The Moon may not be quite as appealing as Mars, but it's still a complex and poorly understood worl
The Moon may not be quite as appealing as Mars, but it's still a complex and poorly understood worl
The Moon may not be quite as appealing as Mars, but it's still a complex and poorly understood worl
The Moon may not be quite as appealing as Mars, but it's still a complex and poorly understood worl
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Henry Spencer:
In 1960-61, a small group of female pilots went through many of the same medical tests as the MercuHenry Spencer:
NASA has never had a problem finding capable people to be astronauts. NASA's problem was, and stillHenry Spencer:
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Not until the space shuttle started flying did NASA concede that some astronauts didn't have to beHenry Spencer:
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Solid-fuel rockets can't easily be shut down on command.Henry Spencer:
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Past experience, on the shuttle and the Titan rockets, suggests that large multi-segment solid rockHenry Spencer:
Sometimes people wonder why aeroplanes are so cheap and rockets are so expensive. Even the most sup