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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. How did life begin? According to various scientific researchers, life has begun from inorganic chemical processes which they referred to as abiogenesis. Nonetheless, it is a daunting task to define the concept of life since there is no generally accepted formulation. Besides, there are various fundamental attributes which possess the ability to replicate, to engage with the environment and to metabolise. Basically, researchers have advanced that abiogenesis has occurred between 3.9 to 3.5 billion years ago in the Eoarchean era. In December 2012, scientific researchers from the NASA have discovered colonies of bacteria living in Antarctica s Lake Vida, located in Victoria Valley a lake which remained untouched for 2800 years. Notably, this region is one of the most isolated place of the world. Immediately, scientists have underlined this gives a clue at what might one day be found in similar environments elsewhere in the Solar System as even inside an almost completely frozen lake within Antarctica s inland dry valleys, in dark, salt-laden and sub-freezing water full of nitrous oxide, life thrives...
