Hydrothermal vent field. (Schmidt Ocean Institute) If you ask a scientist how life appeared on Earth, they will usually begin ...

Add Yahoo as a preferred source to see more of our stories on Google. Life on Earth is thought to have emerged from the primordial ooze some four billion years ago. Now a provocative new study argues ...

A 324-million-year-old fossil suggests early insects lived between water and land as their bodies gradually changed over time ...

How did life go from tiny organisms to large, complex creatures? Scientists see clues in fossils from as far back as 570 ...

An astronomer at Columbia University is suggesting that because life emerged so soon on Earth after its formation, it may emerge rapidly on Earth-like planets after the right conditions arise in ...

Readers offer different perspectives on the fate of life on Earth should the sun vanish – and there may be hope for some ...

Scientist have concluded water did not arrive as early during Earth's formation as previously thought, an insight that bears directly on the question of when life originated on the planet. The finding ...

One debate about the origin of life on Earth concerns whether it formed around deep-sea hydrothermal vents or in scars left behind by an asteroid impact. A new review article analyzes recent research ...

Some scientists suspect that microorganisms can hop between planets by jumping aboard debris kicked up by asteroid strikes. NASA / JPL-Caltech For decades, some of Earth’s brightest scientists have ...

This publication has been produced to meet accepted Accessibility standards and contains various accessibility features including concise image descriptions, a table of contents, a page list to ...

We have only one example of biology forming in the universe—life on Earth. But what if life can form in other ways? How do you look for alien life when you don't know what alien life might look like?