Remember Curiosity, the rover we sent on a trip to Mars for a life of planetary exploration and solitude?
As it turns out, today marks his first birthday after spending a year on the red planet. After four years year of servitude, it has made more than 70,000 images and fired more than 75,000 lasers to check up on rock composition.
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However, it has yet to find any sign of life.
Even though nobody showed up at its birthday party, the scientists behind the rover figured out a way to let it sing Happy Birthday to itself. The series of high-pitched bleeps traveled across the surface of the empty planet, heard by (probably) no one.
Hang in there buddy. Happy birthday.