ELECTRONIC	h   t   t   p   c o l o n   s l a s h   s l a s h   m a r s o w e b dot n a s dot n a s a dot g o v   s l a s h   l a n d i n g s i t e s   s l a s h   f e a t u r e	http://marsoweb.nas.nasa.gov/landingsites/feature	1