The Green Flash When the sun's disk is disappearing at sunset, or appearing at sunrise, its top sometimes momentarily turns a brilliant green. The flash results from dispersion of sunlight in air ...

(WSAV) – Spring is here, and as summer approaches, the sunrise and sunset become popular subjects. During these events, one can witness an optical phenomenon known as the green flash. The green ...

The green flash is another example of an optical phenomenon that sometimes occurs around the moment of sunset or sunrise. It lasts for no longer than two seconds. So, what is it exactly ...