The incredible phenomenon of atmospheric halos

Atmospheric halos are caused by the scattering, refraction, and focusing of light by ice crystals in in the air, and they're even seen on Mars.

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Helsinki ,Eteläuomen Läi ,Finland ,Finnish ,Monte Carlo ,Marko Riikonen ,Jarmo Moilanen ,University Of Helsinki ,Finnish Geospatial Research Institute ,Quantitative Spectroscopy ,