Adam Steltzner, Mars... Pictures

Adam Steltzner, Mars Science Laboratory's entry, descent and landing phase leader at JPL, uses a scale model to explain the Curiosity rover's Entry, Descent, and Landing (EDL) during a Mission Engineering Overview news briefing at NASA's Jet Propulsion Laboratory in Pasadena, Calif. AP Photo <strong>Damian Dovarganes</strong>
Adam Steltzner, Mars Science Laboratory's entry, descent and landing phase leader at JPL, uses a scale model to explain the Curiosity rover's Entry, Descent, and Landing (EDL) during a Mission Engineering Overview news briefing at NASA's Jet Propulsion Laboratory in Pasadena, Calif. AP Photo Damian Dovarganes

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