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How Will The World End?
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Key Facts In This Video
Breaking apart Earth would take as much solar energy as the Earth receives over 40 million years. 00:30
To destroy Earth, the largest known asteroid would have to hit the planet at 700 km/s. 02:06
In 100 billion to a few trillion years from now, the expansion of the universe might affect smaller-scale objects, such as planets. 05:43