So beautiful, sometimes I miss my homeland... but then I remember the pain of waiting for a bus or walking to work in this weather, and how grey and sterile the cities are, and I'm ok. :)

Note the darker purple line just above the horizon? That's the shadow of the Earth cast into space, as the sun is near the horizon on the opposite side.

Also note the pastelly almost 'dusty' tones of the colors, this is typical for about minus 10 or lower Celsius, not sure why, possibly something to do with ice crystals in the upper atmosphere. Do you remember the temperature?