ELECTRONIC	h   t   t   p   c o l o n   s l a s h   s l a s h   w   w   w dot m a r s s o c i e t y dot o r g   s l a s h   h o m e   s l a s h   a b o u t   s l a s h   p u r p o s e	http://www.marssociety.org/home/about/purpose	1