MARS LANDING NASA Administrator Charles Bolden smiles as the rover begins its decent to the surface of mars, inside the Spaceflight Operations Facility for NASA's Mars Science Laboratory Curiosity rover at Jet Propulsion Laboratory in Pasadena, Calif., Sunday August 5, 2012

MARS LANDING Steve Collins waits during the "Seven Minutes of Terror" as the rover approaches the surface of mars, inside the Spaceflight Operations Facility for NASA's Mars Science Laboratory Curiosity rover at Jet Propulsion Laboratory in Pasadena, California, Sunday, Aug. 5, 2012

Mars Science Laboratory Flight Director Keith Comeaux, left, talks to his team inside the Spaceflight Operations Facility for NASA's Mars Science Laboratory Curiosity rover at Jet Propulsion Laboratory (JPL) in Pasadena, Calif. on Sunday, Aug. 5, 2012

Activity lead Bobak Ferdowsi, who cuts his hair differently for each mission, works inside the Spaceflight Operations Facility for NASA's Mars Science Laboratory Curiosity rover at Jet Propulsion Laboratory (JPL) in Pasadena, Calif. on Sunday, Aug. 5, 2012.

In this photo released by NASA's JPL, Members Mars Science Laboratory (MSL) team work in the MSL Mission Support Area at the Jet Propulsion Laboratory hours ahead of the planned landing of the Curiosity rover on Mars, Sunday, Aug. 5, 2012 in Pasadena, Calif.

In a photo provided by NASA, the Mars Science Laboratory team in the MSL Mission Support Area reacts after learning the the Curiosity rover has landed safely on Mars and images start coming in at the Jet Propulsion Laboratory on Mars, Sunday, Aug. 5, 2012 in Pasadena, Calif.

Mars Science Laboratory (MSL) carrying Curiosity rover: touch down on Mars in August 2012

This photo released by NASA on Sunday, Aug. 5, 2012 shows the view from the balcony of the control rooms at the Jet Propulsion Laboratory, the Dark Room in the foreground, Deep Space Network control room on the right, and the Mars Science Laboratory (MSL) Mission Support Area, back left, in Pasadena, Calif

Red Rover, Red Rover - 5 Things You Should Know About Curiosity 12 Infographics about... Curiosity on Mars

Some of the women working on NASA's Mars Science Laboratory Project, which built and operates the Curiosity Mars rover, gathered for this photo in the Mars Yard used for rover testing at NASA's Jet Propulsion Laboratory, Pasadena, California.

Charles Elachi, Charles Bolden, John Holdren In this photo provided by NASA, the Mars Science Laboratory (MSL) team welcomes White House Science and Technology Advisor John Holdren, third standing from left, as he stops by to meet the landing team and to say "Go Curiosity" as NASA Administrator Charles Bolden, second from left, and Jet Propulsion Laboratory Director Charles Elachi, far left look on, Sunday, Aug. 5, 2012 at JPL in Pasadena, Calif.

Curiosity Rover (Mars Science Laboratory) 12 Infographics about... Curiosity on Mars

Mars Science Laboratory Curiosity members from left: Richard Cook, MSL deputy project manager, Adam Steltzner, MSL entry, descent and landing (EDL) lead and John Grotzinger, MSL project scientist, California Institute of Technology, from the Mars Science Laboratory (MSL) Curiosity Rover mission team celebrate the landing of Curiosity rover on the surface of Mars at NASA's Jet Propulsion Laboratory

Mars Science Laboratory Curiosity team member Miguel San Martin, Chief Engineer, Guidance, Navigation, and Control at Jet Propulsion Laboratory, left, celebrates with Adam Steltzner, MSL entry, descent and landing (EDL) of the Mars Science Laboratory (MSL), right, after the successful landing of Curiosity rover on the surface of Mars at NASA's Jet Propulsion Laboratory in Pasadena, Calif., Sunday. (AP)

Charles Elachi NASA Jet Propulsion Laboratory (JPL) director Charles Elachi presents a can of "good luck" peanuts during an overview of the status and plans for NASA's Science Mission Directorate at JPL in Pasadena, Calif

Curiosity NASA Mars rover scientific laboratory to land on the planet Sunday August 5. Here's what Curiosity looks like and some of the experiments scientists hope to complete. Also, step by step breakdown of how JPL has designed Curiosity to land on Mars.

Adam Steltzner Curiosity is scheduled to land on Mars Sunday night, Aug. 5, 2012.

NASA Curiosity Rover

Mars Rover tracks

An image of the surface of Mars, acquired by NASA's Mars Curiosity rover on August 9, 2012

(From L) John Grunsfeld, NASA associate administrator, Richard Cook, MSL deputy project manager, Pete Theisinger, MSL project manager, Adam Steltzner, MSL entry, descent and landing (EDL) lead and John Grotzinger, MSL project scientist from the Mars Science Laboratory (MSL) Curiosity Rover mission team raise their arms at a press conference after the Mars Rover Curiosity successfully landed on the surface of the Red Planet on August 5, 2012 at the Jet Propulsion Laboratory in Pasadena, Ca.