We are, almost certainly, the only intelligent life in the universe. But anyone who says they know for sure is full of hot air, argues new research. We simply don’t know enough about what’s out there ...

The Milky Way Galaxy as seen from the International Space Station Last spring scientists discovered three new Earth-sized planets outside of our solar system, raising the question: could intelligent ...

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The Drake Equation helps scientists estimate the odds of finding intelligent alien civilizations. It’s an age-old question: Do aliens exist? And what are the odds we’ll make contact? A famous ...

It’s been over half a century since Frank Drake developed an equation to estimate the probability of finding intelligent life in our galaxy. We’ve learned a lot since then, prompting an astrophysicist ...