Living up here in northern Scotland, at a latitude 57.4*, means that the nights do not get dark between early May and early August. Instead we enjoy astronomical twilight throughout the short summer nights. This limits astronomical viewings of anything other than the moon and planets but it is also marks the start of the Noctilucent Cloud season, those silvery ice clouds lurking 50 miles above in the mesosphere.
I took this photo of a Noctilucent Cloud display this morning at 0230. View is towards the NE.