The phenomenon, known as paraselene or "moon dogs," is an optical illusion caused by moonlight refraction.
A Blue Moon is a rare occurrence that depends on the timings of full moons during the year. The moon is not blue during a Blue Moon.
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Watch the snow moon linger for three nights, then learn the Moon’s real map
The full moon of February peaks at 5:09 p.m. ET on Sunday, just before sunset and is usually particularly dramatic as it is low in the eastern sky. The time is important since a Moon close to the ...
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