Extras

    Video thumbnail: NOVA Emergency Mine Rescue Preview

    NOVA

    Emergency Mine Rescue Preview

    Engineers and NASA scientists aid an all-out effort to save 33 Chilean miners trapped.

    Emergency Mine Rescue Preview

    Video thumbnail: NOVA Crash of Flight 447 Preview

    NOVA

    Crash of Flight 447 Preview

    Forensic investigators reconstruct the final moments of the Air France disaster.

    Crash of Flight 447 Preview