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 ...

When scientists describe “Earth-like” planets, the phrase often brings to mind worlds scattered across the galaxy, quietly waiting to host oceans, forests, and perhaps civilizations. A recent ...

Across astronomy and astrobiology, a quiet but profound shift is underway. Instead of assuming the galaxy teems with civilizations, a growing body of research argues that complex, technological life ...

Human-Like Life Probably Evolves "Right on Time" A recent study proposes a new model for the evolution of intelligent life, which challenges the long-standing "hard steps" theory that the emergence of ...

The search for intelligent life is looking in the wrong direction. There are billions of stars in our galaxy, some of them older than our sun and with Earth-like planets orbiting around them.

Add Yahoo as a preferred source to see more of our stories on Google. New models of planetary atmospheres and stellar radiation suggest that worlds capable of supporting intelligent life may be far ...