Book of Donmon Teith

Harvard's top astronomer lays out his controversial theory that our solar system was recently visited by advanced alien technology from a distant star

Are alien civilizations really possible? If extraterrestrials exist, where are they? How likely is it that somewhere in the universe an Earth-like planet suppor

Originally published in Great Britain by Profile Books Ltd, 2016.

Scientists and governments are actively searching for signs of life in the universe. Will their efforts meet with success? Award-winning author Paul Davies, an

Astronomers around the world are pointing their telescopes toward the heavens, searching for signs of intelligent life. If they make contact with an advanced al