【TED-Ed】Could we create dark matter? - Rolf Landua | eJOY English
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【TED-Ed】Could we create dark matter? - Rolf Landua

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High Intermediate
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85% of the matter in our universe is a mystery.We don't know what it's made of, which is why we call it dark matter.But we know it's out there because we can observe its gravitational attraction
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