Credits

(HOME)

1) An Observational History of Mars.2001. David Snyder.

http://www.umich.edu/~lowbrows/reflections/2001/dsnyder.7.html

2) Astrobiology 101: Exploring the Living Universe. 1998. National Space Society.

http://www.astrobiology.com/adastra/astrobiology.101.html

3) Calvin J. Hamilton. Solaris Views. [Online] Available

http://solarviews.com/cap/index/mars1.html

4) Pictures of Mars. [Online Image] Available

http://www.space4case.com/space4case/index1.php?action=&rubriek=30900&uitklap=30000

5) Susan Watanabe. Digging in the Dirt on Mars.[Online] Available

www.astrobiology.arc.nasa.gov

6) The Encyclopedia of Astrobiology. 2005. David Darling.

http://www.daviddarling.info/encyclopedia/M/Marsatmos.html

7) The Future of Mars Today. 2005. Red Colony.

http://www.redcolony.com/