Is anybody out there?

Are we alone? : scientists search for life in space /
by: Skurzynski, Gloria
Published: (2004)

The inner limits of outer space /
by: Baird, John C.
Published: (1987)

Five billion years of solitude : the search for life among the stars /
by: Billings, Lee
Published: (2013)

First contact : scientific breakthroughs in the hunt for life beyond Earth /
by: Kaufman, Marc
Published: (2011)

Alone in the universe?
by: Macvey, John W.
Published: (1963)

What does a martian look like? /
by: Cohen, Jack S. (Jack Sidney), 1938-
Published: (2004)

Understanding life in the universe /
by: Arthur, Wallace
Published: (2023)

First contact : the search for extraterrestrial intelligence /
Published: (1990)

The search for extraterrestrial life.

The Galactic Club : intelligent life in outer space /
by: Bracewell, Ronald N. (Ronald Newbold), 1921-2007

Messages from the stars : communication and contact with extraterrestrial life /
by: Ridpath, Ian
Published: (1978)

We are not alone ; the search for intelligent life on other worlds.
by: Sullivan, Walter
Published: (1964)

Search among the stars /
by: Heintze, Carl
Published: (1966)

The search for life on other planets /
by: Jakosky, Bruce M.
Published: (1998)

Lonely planets : the natural philosophy of alien life /
by: Grinspoon, David Harry
Published: (2003)

Other worlds : the search for life in the universe /
by: Lemonick, Michael D., 1953-
Published: (1998)

Life beyond Earth : the intelligent Earthlings' guide to life in the universe /
by: Feinberg, Gerald, 1933-1992
Published: (1980)

After contact : the human response to extraterrestrial life /
by: Harrison, Albert A.
Published: (1997)

The Galactic Club : intelligent life in outer space /
by: Bracewell, Ronald N. (Ronald Newbold), 1921-2007
Published: (1974)

The search for extraterrestrial intelligence : a philosophical inquiry /
by: Lamb, David, 1942-
Published: (2001)

The search for life on Mars : evolution of an idea /
by: Cooper, Henry S. F.
Published: (1980)

Extra-terrestrial intelligence : the first encounter /
Published: (1976)

Aliens : can we make contact with extraterrestrial intelligence? /
by: Clark, Andrew J. H.
Published: (1999)

Intelligence in the universe /
by: MacGowan, Roger A.
Published: (1966)

Are we alone? : The possibility of extraterrestrial civilizations /
by: Rood, Robert T.
Published: (1981)

Alone but not lonely : exploring for extraterrestrial life /
by: Friedman, Louis
Published: (2023)

The search for life on other worlds /
by: Holmes, David C.
Published: (1966)

On civilized stars : the search for intelligent life in outer space /
by: Baugher, Joseph F.
Published: (1985)

The search for extraterrestrial intelligence : listening for life in the cosmos /
by: McDonough, Thomas R.
Published: (1987)

Who goes there? : The search for intelligent life in the universe /
by: Edelson, Edward, 1932-
Published: (1979)

Man on another world /
by: Ehrensvärd, Gösta Carl Henrik, Greve, 1910-
Published: (1965)

We are not alone ; the search for intelligent life on other worlds.
by: Sullivan, Walter
Published: (1966)

Cosmic company : the search for life in the universe /
by: Shostak, G. Seth
Published: (2003)

Why aren't they here? : the question of life on other worlds /
by: Verma, Surendra
Published: (2007)

Confessions of an alien hunter : a scientist's search for extraterrestrial intelligence /
by: Shostak, G. Seth
Published: (2009)

We are not alone : why we have already found extraterrestrial life /
by: Schulze-Makuch, Dirk, 1964-
Published: (2010)