NASA’s Mars Science Laboratory (MSL) will no longer launch in October of 2009 due to testing and hardware challenges that must be addressed in order to ensure a successful mission. The mission has been pushed back to 2011, when MSL will carry a science payload ten times larger than NASA’s Spirit and Opportunity rovers to the martian surface. On Mars, MSL will study the martian environment and will help astrobiologists determine if Mars was once habitable for life as we know it.