Earth is some 4.5 billion years old. When it formed from colliding rocks around a dim, young sun, it was presumably lifeless, and geologists long thought that life didn’t emerge for a billion ...

Since we don’t have fossils from this time, scientists can look at life forms that still exist today in similar conditions. From these, they have suggested possibilities where life first began ... up ...

New research suggests complex life on Earth began 1.5 billion years earlier than ... If it arose from inanimate matter, when ...

A radical new theory rewrites the story of how life on Earth began It has long been thought that the ingredients for life came together slowly, bit by bit. Now there is evidence it all happened at ...