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A primary rainbow with a faint secondary bow, spotted over Newcastle upon Tyne, England
Rainbow near Pennal, Gwynedd, Wales
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A primary bow and a subtle secondary bow over Denver, Colorado, US
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Primary and secondary bows spotted over Haarle, The Netherlands
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A rainbow spotted over the water, near Yanliao Village, Shoufeng Township, Hualien, Taiwan
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The beginning, or the end, of a rainbow, visible amidst a swirl of clouds over North Dundas Township, Ontario, Canada
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An expansive rainbow spotted over the Waihora Clay Target Club in Motukarara, near Christchurch, New Zealand
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A rainbow amidst the storm, spotted over Redland Bay, Queensland, Australia
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A partial rainbow near Brasstown Bald, Georgia, US
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An evening rainbow and a faint secondary bow, following a storm near Melrose, Minnesota, US
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A primary and secondary bow spotted near Sumirago, Varese, Italy
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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 dynamic storm system with high wind gusts near Brighton, Colorado, US
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A rainbow showing itself over North Brunswick, New Jersey, US
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