A planet is an astronomical object orbiting a star or stellar remnant that
* is massive enough to be rounded by its own gravity,
* is not massive enough to cause thermonuclear fusion, and
* has cleared its neighbouring region of planetesimals.

The term planet is ancient, with ties to history, astrology, science, mythology, and religion. Several planets in the Solar System can be seen with the naked eye. These were regarded by many early cultures as divine, or as emissaries of deities. As scientific knowledge advanced, human perception of the planets changed, incorporating a number of disparate obj

Foundation (Foundation, #1)
Foundation's Edge (Foundation #4)
Forward the Foundation (Foundation: Prequel #2)
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Matter (Culture, #8)
Shadow of the Giant (Ender's Shadow, #4)
Stranger in a Strange Land
Ringworld (Ringworld, #1)
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Diane Ackerman
At some point, one asks, "Toward what end is my life lived?" A great freedom comes from being able to answer that question. A sleeper can be decoyed out of bed by the sheer beauty of dawn on the open seas. Part of my job, as I see it, is to allow that to happen. Sleepers like me need at some point to rise and take their turn on morning watch for the sake of the planet, but also for their own sake, for the enrichment of their lives. From the deserts of Namibia to the razor-backed Himalayas, there ...more
Diane Ackerman, The Rarest of the Rare: Vanishing Animals, Timeless Worlds

Michael Crichton
Let's be clear. The planet is not in jeopardy. We are in jeopardy. We haven't got the power to destroy the planet - or to save it. But we might have the power to save ourselves. ...more
Michael Crichton, Jurassic Park

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Book Review of 'Children of Destruction'
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