An extremely rare atmospheric phenomenon called a rainbow bridge or circumhorizontal arc: when the sun is at least 58º above the horizon and ice crystals in clouds form rainbows...
... Or the Bifrost? Where Thor does that swishy thing and goes between realms and Idris Elba has to stop him?
@vivsternz@Adrenochrome Neat! Thanks to ice crystals left behind in rocket exhaust. Used to see these frequently in Los Angeles after launches from Vandenberg. Occasionally there would be a sundog rainbow effect but I never saw this form of it.
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