One year later, NASA looks back at Curiosity rover's scariest moment

For the Curiosity rover, it's just another day on Mars — but back on Earth, Tuesday was a day to look back at the $2.5 billion mission's first year, including a moment when it looked as if the mission might be lost.The six-wheeled, car-sized rover passed the one-year mark at 1:32 a.m.

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