Ominous cloud seen over Alaska sparks conspiracies. What’s the official explanation?

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A large worm-like cloud materialized this week over Alaska’s Lazy Mountain, igniting conspiracy theories and prompting an investigation — and explanation — from Alaska State Troopers. It happened around 7 a.m. Thursday, April 7, and photos show the streak of smoke resembled everything from a falling meteor to a burning aircraft. Social media explanations included talk of an eruption, a crashing UFO and a Russian weapon linked to the ongoing conflict over Ukraine.