They finally made their appearance as Irish observers always look forward to the first sighting of Noctilucent Clouds. Spotted very bright after midnight on the morning of Thursday May 30th for the first time this year, the display was seen by observers all over Ireland and the UK.
Noctilucent Clouds are believed to be ice-coated dust particles left behind by meteors that burned up, suspended on probably the uppermost layer of our atmosphere. They 'shine' because, as an observer is in full night time, the clouds are high enough to catch sunlight and reflect it back to the ground.
