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 ...

We frequently question whether we are alone in the universe. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. This article was originally ...