Milky Way Harbors Billions of Planets Where Life Could Flourish: Study
Science Fiction or Fact: Sentient Living Planets Exist
Adam Hadhazy, Life's Little Mysteries Contributor
Date: 30 March 2012 Time: 02:39 PM ET
A world alive? The moon Pandora in "Avatar," with the gas giant Polyphemus looming in the background.
CREDIT: 20th Century Fox
Narrators of nature shows often speak of Earth as a "living planet." To an extent, the metaphor is true: Biological beings do indeed swim, crawl and fly through our world's uppermost layers of ocean, land and sky. Plant life covers much of the Earth, and bacteria and viruses suffuse its soils, waters and even atmosphere.
But all that is still a far cry from the literally living, conscious planets that make appearances in many sci-fi and fantasy stories. Take Mogo in the "Green Lantern" DC Comics series, for instance. This planetary entity can change its climate and grow foliage in desired patterns on its surface at will.
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