Khan Academy Static

What are the conditions on the surface of Mars? Does it have life? Does it have water? Was the ancient environment habitable on Mars? This tutorial covers 20th century discoveries.

18155_Dry_ice_experiment.html

18159_Martian_methane.html

18153_Viking_mission.html

18160_Spirit_Opportunity.html

18154_Mars_global_surveyor.html

18158_Mars_express_.html

18157_Mars_odyssey.html

18156_Pathfinder_.html