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BookmarkPlanetary habitability is the measure of an astronomical body's potential to develop and sustain life.
It is generally assumed that any extraterrestrial life that might exist will be based on the same fundamental chemistry as found on Earth, as the four elements most vital for life, carbon, hydrogen, oxygen, and nitrogen, are also the most common chemically reactive elements in the universe..
For more information about the topic Planetary habitability, read the full article at Wikipedia.org, or see the following related articles:
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