Cyprian wrote:There are man-made Auroras too. It would behoove us not to become overly enthralled by signs occurring in the atmosphere, since this is the abode of the demons. Our eyes may be easily deceived.
Do you think, Cyprian, that these noctilucent clouds are also man-made?
With all the rocket launches into space, surely these could be causing NLCs, and the weather modification drones that are being used to seed clouds and cast a silvery haze over major cities in the USA might be contributing to the increase in NLCs.
Noctilucent clouds first appeared in the 19th century. At the time, they were a polar phenomenon usually restricted to regions around the Arctic and Antarctic Circles. In recent years, NLCs have intensified and spread with sightings as far south as Utah and Colorado. This could be a sign of increasing greenhouse gases in Earth's atmosphere.
At the moment, NLCs over the USA are little more than wan ripples. As summer unfolds, however, they could turn into something truly bright and eye-catching. Observing tips: Look west 30 to 60 minutes after sunset when the sun has dipped 6o to 16o below the horizon. If you see luminous blue-white tendrils spreading across the sky, you may have spotted a noctilucent cloud.
Some noctilucent clouds (NLCs) noted on June 7th over Penmon Point in Anglesey, Wales:
Barbara, surely you are seeing some of these NCLs just after sunset.