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Game of Thrones Producer May Bring Great Sci-Fi to the Small Screen 

A new Amazon deal may lead to adaptations of work by Robert Heinlein, Greg Bear, and other acclaimed authors. 

By Shannon Raphael

Interview: Sci-Fi Great Robert Silverberg Talks Time Travel

The author shares why he's fascinated by time travel, and talks the upcoming adaptation of "Needle in a Timestack." 

By The Portalist Staff

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