LifeAncient rock formations could be oldest fossils on the planet Rocks in Greenland that have been preserved for 3.7 billion years show evidence of microbes living in a shallow sea on early Earth 51¶¯Âþ
LifeLife may have emerged not once, but many times on Earth Far from being a miracle that happened just once in 4 billion years, life's beginnings could have been so commonplace that it began many times over Features