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Optical Effects
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Fallstreak Hole (Cavum) spotted over Pennsylvania, US
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A red light, appearing to indicate foreboding skies ahead, with mammatus (mamma) spotted at sunset over Arlington, Virginia, US
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A view from above the clouds, over eastern North Dakota, US
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Altocumulus spotted over New Taipei City, Taiwan
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Northern Lights (Aurora Borealis) over Brighton, Colorado, US
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Stratocumulus that looks like a hissing snake, spotted over Greenfield, California, US
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A developing storm spotted from Balbriggan Beach, Balbriggan, Dublin, Ireland
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An arcus ushering in a storm, spotted looking east over the Tasman Sea, near Balgowlah Heights, New South Wales, Australia
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A reflection of altocumulus lenticularis in a pool during sunset, spotted near the Ottawa River, Luskville, Québec, Canada
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22-degree halo, along with what Marsha identified as a Chaparral Yucca (Hesperoyucca whipplei) in the foreground, spotted near Smith Mountain in the Black Mountains, Amargosa Range, Death Valley, California, US
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An indoor view of cirrus clouds, spotted near Rotterdam, The Netherlands
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Northern Lights (Aurora Borealis) along with Jupiter rising to the right of the mesa, near Bluff, Utah, US
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Feathers drifting across the sky, over Monastery Santa Maria de Montserrat, near Barcelona, Spain
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Altocumulus undulatus spotted over Madison, Wisconsin, US
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Multiple contrails spotted over Medford, Massachusetts, US
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