Quote:
Originally Posted by troypiggo
Absolutely magic. Loved the contrast of the ones over still water, treelines, and then the activity and red lights. Very well put together.
Could I ask more about the oxygen and sky colours? I see some green in the sky in some of those, looked like aurora?
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Thanks,
That natural skyglow is sometimes called a "permanent, low-grade aurora
". It is a natural phenomenon and is is caused by various processes in the upper atmosphere, more here:
http://astrobob.areavoices.com/2009/...true-darkness/
and here:
http://en.wikipedia.org/wiki/Airglow
Cheers,
Alex