Works Cited:
- http://en.wikipedia.org/wiki/Mars
- http://www.space.com/47-mars-the-red-planet-fourth-planet-from-the-sun.html
- http://www.news.sciencemag.com
- http://www.earth.com
- http://www.cosmicelk.net/solarsystem.jpg
- http://funfacter.hubpages.com/hub/Fun-Facts-about-Mars
- http://msnbcmedia3.msn.com/j/msnbc/Components/Slideshows/_production/ss_060310_mars/ss_060310_mars_01.grid-8x2.jpg
- http://upload.wikimedia.org/wikipedia/commons/thumb/7/7d/Mars_atmosphere.jpg/220px-Mars_atmosphere.jpg
- http://1.bp.blogspot.com/_uIgTKO8EWXk/SKC0F_XnbMI/AAAAAAAAAS8/XqCC8361lhs/s320/mars04.jpg
- http://www.planetfacts.net/Mars-Facts.html
- http://www.universetoday.com/14702/what-is-mars-made-of/
- http://facts.randomhistory.com/2008/12/22_mars.html