Hot Air Hijinks: What Is That Dancing In The Sky? | Weather.com

Hot Air Hijinks: What Is That Dancing In The Sky?

ByMark Willard•

2 hours ago

Updated: April 20, 2026, 7:48 am EDTPublished: April 20, 2026, 7:48 am EDT

People gasped in shock when they looked out a window and saw a strange black something twisting and diving in the sky. It happened on a very hot day in Hanoi, Vietnam, and that turned out to be key in solving the mystery of what was happening.

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