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A Bussard ramjet is a relativistic spacecraft, fueled by fusion energy of cosmic matter that is collected during the flight. We derive the equation of motion of such a spaceship for a given mass…
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Interstellar transport is an object of interest in many sci-fi stories. In history a lot of sci-fi predictions have turned into reality, such as communications satellites, deep-sea submarines and…
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Experience in exploring our own solar system has shown that direct investigation of planetary bodies using space probes invariably yields scientific knowledge not otherwise obtainable. In the case of…
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Specific energy (i.e. energy per unit mass) is one of the most fundamental and consequential properties of a fuel source. In this work, a systematic study of measured fusion cross-sections is…
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On the technological horizon
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The early years of the space programme saw the origination of the interstellar ramjet. During the heady 1960s and 1970s, this approach seemed more than capable of permitting human exploration and…
A comment on "the far future of exoplanet direct characterization"--the case for interstellar space probes.
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It is argued that the presence of interstellar dust grains, while certainly something that will need to be allowed for in interstellar vehicle design, is unlikely to be the kind of showstopper suggested by Schneider et al.
Self-replicating probes for galactic exploration.
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be scanned and added for WWW distribution. Self-replicating probes for galactic exploration. Figure 4 The letters IBM, shown here were the first structures ever assembled one atom at a time…
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