00:00The sky is flashing in total silence?
00:03No, it's not a glitch.
00:05It's the mystery of heat lightning.
00:07Meet heat lightning.
00:09This phenomenon is actually just regular lightning
00:12from a storm that's too far away to hear,
00:15usually over 12 miles away.
00:17Since light travels much faster than sound,
00:20you only see the flash,
00:22while the thunder dissipates into the atmosphere
00:25before it ever reaches your ears.
00:27It's not silent lightning.
00:28It's just the ghost of a distant storm.
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