MSL Team Members at JPL
Mars Science Laboratory (MSL) team members talk in the MSL Mission Support Area at the Jet Propulsion Laboratory ahead of the planned landing of the Curiosity rover on Mars, Sunday, Aug. 5, 2012 in Pasadena, Calif.
"Days Since Launch" Marbles
Mars Science Laboratory (MSL) Flight Systems Chief Engineer Rob Manning, left, smiles as he watches MSL Flight Director Keith Comeaux move the final marble from a jar marked "Days Until Entry" to the jar marked "Days Since Launch" at the Jet Propulsion Laboratory on Sunday, Aug. 5, 2012 in Pasadena, Calif.
will.i.am and Curiosity Rover Mock Up
Musician Will.i.am, center, listens to NASA Goddard Space Flight Center Sciences and Exploration Directorate Chief Scientist Jim Garvin talk next to a mock up of the Mars Science Laboratory rover Curiosity as Astronaut and NASA's Associate Administrator for Education Leland Melvin looks on at the Jet Propulsion Laboratory (JPL) a few hours ahead of the the planned landing of the Curiosity rover on Mars, Sunday, Aug. 5, 2012 in Pasadena, Calif.