Mars rover sings 'Happy Birthday' to itself

Happy Birthday to the Mars rover! On August 5, 2012, NASA's Curiosity rover touched down on Mars. Many celebrate this on August 6 because when it landed at 10:32 p.m. PT, most of the world was a day ahead. However, NASA celebrates on August 5.

In the past five years, it has made some great discoveries.

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On the anniversary of its landing, Curiosity is programmed to sing the "Happy Birthday" tune.

Perhaps someday, someone on Mars will finally hear it.

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