Science Fiction

Ultima Thule

de Mack Reynolds

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Unbegotten Child

de Winston K. Marks

If this was true, there ought to be another edition of What Every Young Girl Should Know!

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Unborn Tomorrow

de Mack Reynolds

Unfortunately, there was only one thing he could bring back from the wonderful future... and though he didn't want to... nevertheless he did....

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Under Arctic Ice

de H.G. Winter

Ken Torrance races Poleward to the aid of the submarine Peary, trapped in an icy limbo of avenging sealmen.

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Uniform of a Man

de Dave Dryfoos

After rescue, revenge was uppermost in Chet Barfield's mind; the hideous, bestial Agvars had to be taught a lesson they'd never forget. His rescuers seemed to disagree, however—until Chet learned his lesson...

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Unspecialist

de Murray F. Yaco

A machine can be built to do any accurately described job better than any man. The superiority of a man is that he can do an unexpected, undescribed, and emergency job... provided he hasn't been especially trained...

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Unthinkable

de Rog Phillips

If Nature suddenly began to behave differently, what we consider obvious and elementary today might become—unthinkable.

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