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 ...

The transition from non-life to life was very likely aided by an asteroid hitting Earth, prebiotic chemistry, molecular ...

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 ...

BackgroundThe emergence of the first biopolymers and their building blocks on the early Earth is considered a key moment in the origin of life (OoL ...

"Consciousness," although challenging to define, can be thought of as a first-person awareness of one's surroundings and oneself. You sense the world through your eyes, nose, ears and hands, and track ...

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 ...

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? Here’s what you’ll learn when you read this story: In an investigation to find out ...

Earth, now 4.5 billion years old, has reached middle age. Scientists explain how the Sun will shape its future and why studying Earth matters for human survival.

Researchers recreated conditions from billions of years ago and found that Earth’s young atmosphere could make key molecules linked to life. These sulfur-rich compounds, including certain amino acids, ...