green and purple northern lights in iceland with the sky bluish by the moon

night sky star astronomy aurora midnight green darkness galaxy light moonlight thunder rainbow lightning thunderstorm tree storm purple northern lights iceland bluish moon antarctic arctic astronomy atmosphere aurora borealis beautiful blue colors constellations dark far north finland forest galaxy green iceland landscape island lapland light magnetic magnetosphere natural nature night northern lights norway phenomenon polar polar scandinavia science sky snow solar space star stars travel silhouettes trees twilight universe winter