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 ...

The red sky paradox is a difficult problem for astronomers. On the one hand, we know for certain that life exists here on Earth around a G-type yellow dwarf star. On the other hand, this type of star ...

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 ...

I am one of the 65% of Americans who believe that intelligent life exists on other planets. We have no way of knowing what level any of them have evolved to but I would guess that most are not at our ...

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 ...