Construction was set to begin Monday on the Square Kilometer Array, the largest radio telescope ever, which will scan the skies for aliens and try to see to the very edge of the universe. Scientists ...

There are tens of billions of Sun-like stars in the Milky Way, an immense tally that encourages the possibility that extraterrestrial life peppers the universe. Finding evidence for aliens - even ...

The Giza Pyramids are among the best documented construction projects of the ancient world, yet a stubborn slice of popular culture still credits them to visitors from another planet. I want to ...