-
possibility of life on Mars and
other planets.
According to
biographer Ray
Spangenburg, Sagan's
efforts in his
early years to
understand the
mysteries of the...
-
Improbable Life.
Random House Trade Paperbacks. ISBN 978-0-8129-7980-0.
Spangenburg, Ray; Moser,
Diane (2004). Open For Debate:
Genetic Engineering. Benchmark...
-
Spariosu 1991, p. 176.
Achenbach 1999, p. 92.
Geppert 2012, p. 297.
Spangenburg,
Moser &
Moser 2004, p. 74.
Wolverton 2004, p. 82.
Wolverton 2004, p...
- 24, 2019. Bird &
Sherwin 2005, pp. 371–377 C****idy 2005, pp. 269–272
Spangenburg &
Moser 2004, pp. 41–44 "J.
Robert Oppenheimer, Atom Bomb Pioneer, Dies"...
- Scientists. Michigan,
United States: Gale. pp. 142. ISBN 0787639001.
Spangenburg, Ray; Moser, Diane; Long,
Douglas (2014-05-14).
African Americans in...
- commitment, and it
might damage his
career to say no, he went along.
Spangenburg, Ray; Moser,
Diane Kit (2009).
Wernher von Braun,
Revised Edition. Infobase...
- (2005) Zork:
Nemesis (1996) with
Cecilia Barajas and Adam
Simon Ray
Spangenburg, Kit Moser: Carl Sagan: A Biography.
Greenwood Press,
Westport Connecticut...
- last name, see the
category page
People from East St. Louis, Illinois.
Spangenburg, Ray (2003).
African Americans in Science, Math, and Invention. Infobase...
- info.
Archived from the
original on 2023-08-11.
Retrieved 2023-08-09.
Spangenburg, Ray; Moser, Kit (2004). Carl Sagan: A Biography.
Greenwood Biographies...
-
societies "About Us". The
Planetary Society.
Retrieved October 30, 2020.
Spangenburg, Ray; Moser,
Diane (2004), Carl Sagan: a biography,
Greenwood Publishing...
