As we know that Venus do have greenhouse gases and it is also called as earth's twin. what if once life on Venus was possible and there are still some living beings left on this planet ?
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The planet Venus is like Earth in many ways. It has a similar size and mass, it is closer to us than any other planet, and it probably formed from the same sort of materials that formed Earth. For years scientists and science fiction writers dreamed of the exotic jungles and life forms that must inhabit Earth's twin sister.
David Grinspoon, a research scientist at the Southwest Research Institute in Boulder, Colorado, writes in his book, "Venus Revealed," that, through the Mariner 2 and other Venus missions, "we found our 'sister planet' to be chemically alien, as well as hot and dry to quite unearthly extremes. With these revelations, the twin-sister imagery quickly disappeared, and the notion that 'Venus is hell' took hold."
Only 20 percent of the sunlight that hits Venus makes it through the cloud cover, while the other 80 percent is reflected back into space. This reduced sunlight doesn't make Venus a cold world, however, because the thick carbon dioxide atmosphere traps the planet's heat. This greenhouse effect on Venus is often cited as a nightmare example of what could happen to Earth if we don't get our pollution under control.
In an interview, Grinspoon explains how Venus evolved from a wet planet similar to Earth to the scorching hot, dried-out furnace of today. Then he discusses the possibility that Venus was once an inhabited world.
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