Extras

    Video thumbnail: NOVA Ultimate Mars Challenge Preview

    NOVA

    Ultimate Mars Challenge Preview

    Airs Wednesday, December 11, 2013 at 9:00 p.m. ET/PT. Check your local listings.

    Ultimate Mars Challenge Preview

    Video thumbnail: NOVA Parachute Problems

    NOVA

    Parachute Problems

    NASA untangles why a parachute failed during tests prior to the Curiosity landing.

    Parachute Problems

    Video thumbnail: NOVA Space Kids

    NOVA

    Space Kids

    Engineers who landed the Curiosity rover on Mars recall their early love of space.

    Space Kids