From Live Science:
Much of the search for life outside of Earth's biological oasis has focused on examining the conditions on the other planets in our solar system and probing the cosmos for other Earth-like planets in distant planetary systems.
But one team of astronomers is approaching the question of life elsewhere in the universe by looking for life's potential beginning.
Aparna Venkatesan, of the University of San Francisco, and Lynn Rothschild, of NASA's Ames Research Center in Moffett Field, Calif., are using models of star formation and destruction to determine when in the roughly 13.7 billion-year history of the universe the biogenic elements – those essential to life as we know it – might have been pervasive enough to allow life to form.
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