Scientists Baffled by 'Bootprint' and Persian Rug on Mars 

New images of an ancient crater on Mars look just like a bootprint -- and the high res pics have failed to solve the age-old mystery for planetary scientists. If anything, the high-resolution images of the "Footprint Crater" -- otherwise known as Orcus Patera -- have puzzled Mars-watchers even further as to how the Red Planet was originally scarred with the 240-mile-long depression. (And who tried to cover over the impact with a Persian Rug is a complete mystery.) 

The picture was taken by the European Space Agency's Mars Express orbiter and released by the ESA late last week. read more ...

Via: OnlineSchools.org