Add Yahoo as a preferred source to see more of our stories on Google. All life on Earth can be traced back to a Last Universal Common Ancestor, or LUCA. A study suggests that this organism likely ...

For decades, many scientists have relied on the "hard steps" model to suggest that intelligent life is rare — the improbable result of a series of unlikely evolutionary leaps. But new research by ...

For decades, scientists have been baffled by two enormous, enigmatic structures buried deep inside Earth with features so vast and unusual that they defy conventional models of planetary evolution.

A new study uncovered fresh chemical evidence of life in rocks more than 3.3 billion years old, along with molecular traces showing that oxygen-producing photosynthesis emerged nearly a billion years ...

The history of the first plant on Earth is not as simple as the identification of a particular species of plants, but it is a long history of evolution that started in the water and changed the planet ...

TIME: Much of what you write about in the book involves the idea of “dispersal” as an evolutionary process that could dramatically change the human species. Describe what you mean by that. Scharf: ...

About 4.6 billion years ago, the Solar System formed from a cloud of dust and gas collapsing in on itself due to gravity. The Sun, planets, and eventually Earth formed out of the cloud. But when did ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Here’s what you’ll learn when you read this story: All life on Earth can be traced back to a Last ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Here’s what you’ll learn when you read this story: Life on Earth had to begin somewhere, and scientists ...