The Limits of Organic Life in Planetary Systems Book
Life was emerged on Earth 4 billion years ago which means that it only took about 500 million years or less for life to begin. So a common suggestion on life on other planets is the possibility that if life is found on other planets and solar systems. Many research has been already started to find the life on other planets of universe.
It is assumed there are hundreds of earth like planet in out solar system where life may be found but we are not that developed to reach on them.
The search for life in the solar system and beyond has to date been governed by a model based on what we know about life on Earth (terran life). Most of NASA’s mission planning is focused on locations where liquid water is possible and emphasizes searches for structures that resemble cells in terran organisms.
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