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Science
Does lightning come up from the ground?
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Cloud-to-ground lightning comes from the sky down, but the part you see comes from the ground up. A typical flash lowers a path of negative electricity, that we cannot see, that meets a positive charge from objects on the ground. When these two collide a return stroke zips back up to the sky
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The answer is both. Cloud-to-ground (CG) lightning comes from the sky down, but the part you see comes from the ground up.
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