Extraterrestrials, where are they? /

Here be dragons : the scientific quest for extraterrestrial life /
by: Koerner, David
Published: (2000)

Carl Sagan's cosmic connection : an extraterrestrial perspective /
by: Sagan, Carl, 1934-1996
Published: (2000)

Are we alone? : philosophical implications of the discovery of extraterrestrial life /
by: Davies, P. C. W.
Published: (1995)

The search for extraterrestrial life.

Extraterrestrial civilizations /
by: Asimov, Isaac, 1920-1992
Published: (1979)

Extraterrestrial intelligence /
by: Heidmann, Jean
Published: (1995)

The cosmic connection : an extraterrestrial perspective /
by: Sagan, Carl, 1934-1996
Published: (1975)

Bioastronomy 2007 : molecules, microbes, and extraterrestrial life : proceedings of a workshop held at San Juan, Puerto Rico, 16-20 July 2007 /
Published: (2009)

Exobiology: the search for extraterrestrial life ; proceedings of an AAS/AAAS symposium held in New York, N.Y., December 30, 1967 /

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

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

Extraterrestrials : science and alien intelligence /
Published: (1985)

Communication with extraterrestrial intelligence (CETI) /
Published: (1973)

The extraterrestrial encyclopedia : an alphabetical reference to all life in the universe /
by: Darling, David J.
Published: (2000)

The search for extraterrestrial life, recent developments : proceedings of the 112th symposium of the International Astronomical Union held at Boston University, Boston, Mass., USA, June 18-21, 1984 /
Published: (1985)

Communication with extraterrestrial intelligence /
Published: (2011)

The biological universe : the twentieth-century extraterrestrial life debate and the limits of science /
by: Dick, Steven J.
Published: (1996)

World alone /
by: Rodgers, David Leigh
Published: (1974)

Bioastronomy 2002 : life among the stars : proceedings of the 213th symposium of the International Astronomical Union held at Hamilton Island, Great Barrier Reef, Australia /
Published: (2004)

The Search for Extraterrestrial Intelligence (SETI) in the optical spectrum : 21-22 January 1993, Los Angeles, California /
Published: (1993)

Astrophysics of life : proceedings of the Space Telescope Science Institute Symposium held in Baltimore, Maryland, May 6-9, 2002 /
Published: (2005)

Concepts for detection of extraterrestrial life /

The search for extraterrestrial intelligence (SETI) in the optical spectrum III : 22-24 January 2001, San Jose, USA /
Published: (2001)

The search for extraterrestrial intelligence (SETI) in the optical spectrum II : 31 January-1 February 1996, San Jose, California /
Published: (1996)

The extraterrestrial encyclopedia : our search for life in Outer Space /
by: Angelo, Joseph A.
Published: (1985)

The extraterrestrial life debate, antiquity to 1915 : a source book /
by: Crowe, Michael J.
Published: (2008)

The search for extraterrestrial intelligence, SETI /
Published: (1977)

Communication with extraterrestrial intelligence /
Published: (1979)

The search for extraterrestrials : intercepting alien signals /
by: Ross, Monte
Published: (2009)

The extraterrestrial life debate, 1750-1900 : the idea of a plurality of worlds from Kant to Lowell /
by: Crowe, Michael J.
Published: (1986)

Progress in the search for extraterrestrial life : 1993 Bioastronomy Symposium, Santa Cruz, California, 16-20 August 1993 /
Published: (1995)

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

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 quest : a report on extraterrestrial life /
by: Allen, Thomas B.
Published: (1965)

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