161
Published 2013
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162
by Tinder, Richard F., 1930-
Published 2007
Table of Contents: '; ... -- Comparative distances, flight times and rocket mass ratios to various star/planet systems, galaxies and beyond...
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163
Published 2013
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164
Published 2013
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165
Published 2013
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166
Published 2013
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167
Published 2009
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168
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170
Published 2013
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171
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173
Published 2013
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174
Published 2007
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175
by Roggema, Rob.
Published 2009
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176
Published 2013
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177
178
by Mobberley, Martin.
Published 2013
Table of Contents: '; ...: Nursing Mother -- Chapter 26: A British Comet Marks the End of an Era -- Chapter 27: Musings on Planet 10...
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179
Published 2010
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180
Published 2009
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