If the universe is teeming with aliens-- where is everybody? January 2002 Fermi, Enrico, -- 1901-1954; Fermi's paradox; Life on other planets ISBN 0387955011 View on Amazon Lists featuring this book (10)
Implications of Contact with Extraterrestrial Civilizations 26 books on this list books civilizations contact extraterrestrial implications
Greenes Superstrings & the Mysterious Universe 20 books on this list books greenes mysterious superstrings universe
