Photo-Walk 2017

For several years, on and off, I’ve attended an annual Photo-Walk based in Inverary, Argyll. This year was no exception – always good to catch up with friends I’ve met on the walk previously. As always, Argyll is a favoured place and Autumn a favoured season; the combination of light and landscape makes for enjoyable […]

Noctilucent Clouds

Noctilucent (“night-shining”) clouds are a rare phenomenon: the highest clouds in the atmosphere, at altitudes between 47-53 miles, consisting of tiny crystals of water ice about 100nm in diameter and requiring very cold temperatures to form.┬áNot fully understood, they are a recently discovered meterological phenomenon with no record of their observation before 1885. They also […]