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Answering Your Questions About Reactor: Right here.
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When one looks in the box, whatever remains, however improbable, must be the cat.

Reactor

Joe Haldeman

galaxy overlaid with the text of math equations

Speculative Extrapolation: Five SF Visions of the Future, According to Math

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Suit Up for Battle: Body Armor: 2000, Edited by Joe Haldeman, Charles G. Waugh, and Martin Harry Greenberg

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Five SFF Stories Set in Academia

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Abandon All Hope: Five Extremely Pessimistic SF Classics

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Beyond Dune and Foundation: Golden Age and New Wave SF Classics That Should Be Adapted Right Now

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Four SF Works Featuring a Far-Future U.S.A.

Five Doomed Armies in Science Fiction

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Spaceship on the cover of The Dark Beyond the Stars, art by John Harris

Five SF Works Involving Epic Space Journeys

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4 SF Works Featuring a Far-Future U.S.A.

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Collapsing Empire Cover

SF Stories That Cut the Vastness of Space Down to Size

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5 SFF Stories About Surviving the Dangers of Boarding School

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SF Stories Featuring Abandoned Earths

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