Some great noctilucent shots

[MarkS]

Pictured over Edinburgh:
http://www.dailymail.co.uk/sciencetech/article-2166528/Rare-blue-night-shining-clouds-pictured-dusk-Edinburghs-landmark-rail-bridge.html

[Rick]

Some good photos there. I particularly like the one taken from ISS, which hels to show just how high noctilucent clouds are.