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The world's richest man made a $42 million investment in a vast clock, now under construction, that is designed to tick away for 10,000 years. Elon Musk sent a car to space that should orbit the sun for millions of years, containing...
The world's richest man made a $42 million investment in a vast clock, now under construction, that is designed to tick away for 10,000 years. Elon Musk sent a car to space that should orbit the sun for millions of years, containing...