Though sun halos can happen year-round, they are especially noticeable in the winter when ice-filled cirrus clouds are more common.
A breathtaking 22-degree sun halo, a circular optical phenomenon, sparks awe in Singapore. It was last seen nearly a half a ...
That bright, circular halo is a natural optical phenomenon known as a sun halo, and while it may look mystical, there’s a straightforward scientific explanation. A sun halo is seen in the skies ...
It was so rare and spectacular that even former Prime Minister Lee Hsien Loong shared photo of it. Read more at stomp.straitstimes.com ...
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