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Optical Effects
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Lunar iridescence spotted shortly before Midnight over Madison, Wisconsin, US
Altocumulus stratiformis undulatus spotted at night over Llanelli, Wales
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A night that was filled with sound and light, reflected here by the visible cumulonimbus due to the ongoing lightning strikes, captured by Courtenay's friend, Jack Canter, near Boman, South Carolina, US
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A nighttime view of passing cumulus over Palma de Mallorca, Spain
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A lightning strike near Zadar, Croatia
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Noctilucent clouds appear well beyond the altitude of the altocumulus clouds along the horizon, as seen over Hull, East Yorkshire, England
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As Rachel observed, the clouds resembled two winged creatures making away with the moon, as seen over North Dundas Township, Ontario, Canada
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The pathway of lightning clearly marked in the evening sky over Arlington, Virginia, US
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A full moon with passing stratus fractus over Collioure, France
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Lunar iridescence over Pingzhen City, Taoyuan County, Taiwan
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A moonlit night over Curtin, Canberra, Australia
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Orion 'surfing on a cloud' over Sandstonehenge, near Bluff, Utah, US
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22-degree lunar halo over Port Melbourne, Victoria, Australia
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Moonrise over Bluff, Utah, US
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Moonset with some faint altostratus over Bluff, Utah, US
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A faint red aurora borealis spotted over Crank, Merseyside, St. Helens, England
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