"Where is everybody?" That famous phrase, uttered over lunch by eminent physicist Enrico Fermi, perfectly encapsulated what has since become known as the Fermi paradox: If life happened here on Earth ...

"Where is everybody?": This question, about the lack of aliens in the vast universe, is called Fermi's paradox - Copyright NASA/AFP/File HO "Where is everybody ...

Astronomers raised hopes that humanity might not be alone in the universe by announcing on Thursday they have detected the most promising hints yet of life on a distant planet. But given the age and ...

Astronomers raised hopes that humanity might not be alone in the universe by announcing on Thursday they have detected the most promising hints yet of life on a distant planet.