the polar arctic northern lights aurora borealis sky star in norway svalbard longyearbyen city snowscooter mountains

adventure antarctic arctic astronomy aurora beautiful beauty black blue borealis building city dark darkseason daynight expedition fjord forecast green horizon iceland island landscape light lights longyearbyen magnetic man moon mountain mountains natural nature night north northern norway phenomenon polar pole scandinavia sky snow snowscooter space spitsbergen star svalbard travel tromso view wallpaper winter