johnnydouglas
Oct 14, 2010, 05:23 AM
What courses the blue flash at sunset
ebaines
Oct 14, 2010, 05:40 AM
The "blue flash" is a rare phenomenon associated with the more common (but still rare) "green flash" at sunset. For an explanation, see: Green flash - Wikipedia, the free encyclopedia (http://en.wikipedia.org/wiki/Green_flash)