Is there water and life on mars?
Unlike Earth, since there are no oceans to obscure the planet Mars, its topography is now better explored and known than that of Earth (Australian Geographic 2003). It has the largest known volcano in the Solar System, Olympus Mons, three times as high as Mt Everest, arid the longest and deepest known canyon, Valles Marineris, 4000 km long and 10 km deep (Australian Geographic 2003). […]