Aye, I have been researching Mars extensively, and although I indeed appreciate the criticism, I must express that this IS an artist's rendition. THe atmosphere of Mars is rarely pink, due to the color shift and the low millibars of CO2 mostly. I won't go into the mathematics here, but alas, NASA shots SCHMASA shots. Next people will say that men landed on the moon back in '69! Anyone interested in Mars would benefit from Kim Stanley Robinson's series, "Red Mars", "Green Mars", "Blue Mars", all about areoforming the planet, making it habitable. You don't say "terraforming" on Mars (Ares-areoforming), nobody wants to turn Mars into another Earth. This is the definitive work on the subject, and I assure you our children and their children will have a chance to join this adventure! But I will consider making the foreground less crusty, in the post-production version...