EarthLife may have begun on Earth 100 million years earlier than we thought A new timeline of early evolution suggests life on Earth began 100 million years earlier than we thought, while meteorites were still pummelling the planet ¿ìè¶ÌÊÓÆµ
LifeHow to think about... LifeWhat distinguishes a human from a virus from an inert rock? There are many definitions for what it means to be alive – and soon humanity might fail someFeatures