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A primary and secondary bow spotted near Sumirago, Varese, Italy
A primary and secondary bow spotted by Rafael's friend, Cindy Tang, over Changchun, China
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Rainbow over Schlossborn, Taunus, Germany
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In sharply defined rainbows, a set of narrow coloured bands can often be found repeating on the inside of the primary bow. Called supernumerary bows, they add an extra-special dimension to the display and are produced by diffraction as light waves cross each other exiting the raindrops, as seen here over Amsterdam, Netherlands.
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A primary and secondary rainbow spotted late in the day over Northern California, US
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A vivid portion of a rainbow spotted near Gruyere, Yarra Valley, Melbourne, Australia
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A primary and secondary rainbow over Yancey County, Western North Carolina, US
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A primary rainbow and a secondary bow spotted over Eastern Shore of Chesapeake Bay, Maryland, US
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An exquisite rainbow amidst the passage of a storm, captured by Lauren's daughter near Twisp, Washington, US
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A primary and secondary rainbow over Brisbane, Australia
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Supernumerary bows, with a primary rainbow and a faint secondary rainbow, spotted over Newport Coast, California, US
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Supernumerary bows, with a primary rainbow and a faint secondary rainbow, spotted over Wustrow, Germany
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Supernumerary bows, which consist of tiny fringes inside the primary bow, along with a secondary bow, spotted near Crank, Merseyside, England
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Supernumerary bows, which consist of tiny fringes inside the primary bow, along with a secondary bow, over Deep Creek, British Columbia, Canada.
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Intense rainbow action spotted over Durham, North Carolina, US, including a primary bow, a secondary bow, supernumerary bows (tiny fringes inside the primary bow) and Alexander’s Dark Band (the darker sky between the bows).
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