Astrobiology by Lewis Dartnell
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Area 51 by Gail B. Stewart
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Erinnerungen an die Zukunft by Erich von Däniken
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Is there life in outer space? by Franklyn M. Branley
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Alien encounters by Campbell, Peter A.
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Alien Visitors by Bruce Coville
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You are the first kid on Mars by Patrick O'Brien
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Is there life on other planets? by Isaac Asimov
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100 Scariest Monsters by BBC Books Staff
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Aliens And Ufos by Lori Hile
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The search by Frank Stilley
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Scary stories by Whiting, Jim
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Publishing History

This is a chart to show the publishing history of editions of works about this subject. Along the X axis is time, and on the y axis is the count of editions published. Click here to skip the chart.  This graph charts editions published on this subject.
Editions Published
Year of Publication

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Subjects

Life on other planets, Juvenile literature, Extraterrestrial beings, Unidentified flying objects, Human-alien encounters, Unidentified flying objects, juvenile literature, Interstellar communication, Outer space, exploration, Outer space, exploration, juvenile literature, Exploration, Mars (planet), Mars (planet), juvenile literature, Planets, Sightings and encounters, Alien abduction, Juvenile fiction, Fiction, Miscellanea, Monsters, Planets, juvenile literature

Places

Mars (Planet), Outer space, Area 51 (Nev.), China, Earth, Egypt, Guatamala and more., Mexico, Milky Way, Peru, United States

People

Christopher P. McKay, Ezekiel, Indian and Egyptian wall paintings showing beings appearing to wear some type of suit and helmet resembling modern astronauts., in the bible, mentioned as flying away in a wheel within a wheel

Times

Refers to images, legends and writings from hundreds of years before Christ.

Prolific Authors

who have written the most books on this subject
Hilary Evans, 3 books
Andrew Solway, 2 books
Andrew Donkin, 2 books
Jason Porterfield, 2 books
Helen Orme, 2 books
Judith Herbst, 2 books
Franklyn M. Branley, 2 books
Dana Meachen Rau, 2 books
Jacqueline Mitton, 2 books
Laura K. Murray, 2 books
Clive Gifford, 2 books
Stuart A. Kallen, 2 books
Keith Newstead, 2 books
Angela Royston, 2 books
Karl Shuker, 2 books
David Getz, 2 books
Steve Parker, 2 books
Laura La Bella, 2 books
Nick Hunter, 2 books
Virginia Loh-Hagan, 2 books
Todd Kortemeier, 2 books
Andrew Coddington, 2 books
Michael Portman, 2 books
Peter Ryan, 1 book
Christopher Evans, 1 book