Not content with dominating the mother-planet and its barren satellite, those lovable geeks at Google have now launched Google Mars, enabling the man-about-the-web to check out potential Martian real estate if he’s bored with terran and lunar landscapes. And if that’s not enough for you, PhysOrg.com are pointing to a page on the NASA site where you can watch a virtual flythrough of the Red Planet’s Valles Marineris canyon.