Conditions shortly after the Big Bang may have been just right for life to appear in some parts of the universe, according to a new theory by a Harvard scientist.
Fifteen million years after the Big Bang, the entire universe would have been warm enough to support life due to the cooling of superheated gases that eventually led to what scientists believe is cosmic microwave background (CMB), astrophysicist Abraham Loeb from the Harvard University noted.
After the Big Bang, the temperature would have been closer to 26 degrees Celsius - more than warm enough to support life if there were a place for it to appear, he said.
Loeb notes that it would have been possible for rocky planets to have existed at that time too - in places where matter was exceptionally dense, 'Phys.org' reported.
He believes it is possible that all of the pieces necessary for the appearance of life might have been in place in some parts of the universe, for approximately two or three million years - enough time for the initial brewing that could have led to the development of microbes of some sort. Life would not have lived long enough to evolve into anything complex - it would have been snuffed out as the CMB cooled, Leob said. No evidence would have been left behind, which means Loeb's theory can never be proven. The findings were published in the journal arXiv.