Sun dogs, rainbows and glories are celestial wonders – and they may appear in alien skies too
Earth may not be the only planet with sun dogs, as shown here in a wintry landscape. Guozongxia/Shutterstock Every once in a while, you may look up towards the Sun and see strange bright lights on either side of it. Or perhaps you’ll be sitting in an aircraft, looking out the window at its shadow […]
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