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Centauri Dreams - Imagining and Planning Interstellar Exploration (Paperback, Softcover reprint of the original 1st ed. 2004)
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Centauri Dreams - Imagining and Planning Interstellar Exploration (Paperback, Softcover reprint of the original 1st ed. 2004)
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I wrote this book because I wanted to learn more about interstel
lar flight. Not the Star Trek notion of tearing around the Galaxy
in a huge spaceship-that was obviously beyond existing tech
nology-but a more realistic mission. In 1989 I had videotaped
Voyager 2's encounter with Neptune and watched the drama of robotic
exploration over and over again. I started to wonder whether we
could do something similar with Alpha Centauri, the nearest star to
the Sun. Everyone seemed to agree that manned flight to the stars
was out of the question, if not permanently then for the
indefinitely foreseeable future. But surely we could do something
with robotics. And if we could figure out a theoretical way to do
it, how far were we from the actual technology that would make it
happen? In other words, what was the state of our interstellar
technology today, those concepts and systems that might translate
into a Voyager to the stars? Finding answers meant talking to
people inside and outside of NASA. I was surprised to learn that
there is a large literature of interstellar flight. Nobody knows
for sure how to propel a space craft fast enough to make the
interstellar crossing within a time scale that would fit the
conventional idea of a mission, but there are candidate systems
that are under active investigation. Some of this effort begins
with small systems that we'll use near the Earth and later hope to
extend to deep space missions."
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