"One Hand Clapping" draws from neuroscience, evolution, philosophy and a rich tapestry of cultural references to examine how ...

Alien life might look unlike anything we've ever seen on Earth. Trying to find evidence of these unknown organisms will require some creativity. When you purchase through links on our site, we may ...

Chris Impey receives funding from the National Science Foundation and the Howard Hughes Medical Institute. We have only one example of biology forming in the universe – life on Earth. But what if life ...

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?

The timeline of terrestrial evolution holds surprises. While scientists thought complex life required oxygen, a recent ...

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 ...

Human beings have been at the center of ecological change on Earth for thousands of years. But as history shows, no species ...

Astrobiology faces the fundamental challenge of searching for extraterrestrial life without a universal definition of life or examples beyond Earth, despite the discovery of over 5,000 exoplanets, ...

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 ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." All life on Earth can be traced back to a Last Universal Common Ancestor, or LUCA. A new study suggests ...