Noctilucent Clouds and Aurora Over Scotland  Video
Credit: Maciej WiniarczykMusic: Jolanta Galka-Kurkowska  Why
would the sky still glow after sunset? Besides stars and the
band of our Milky Way galaxy, the sky might glow because it
contains either noctilucent clouds or aurora. Rare individually,
both are visible in the above time lapse movie taken
over CaithnessScotlandUK taken during a single night earlier
this month. First noted in 1885, many noctilucent clouds are
known to correlate with atmospheric meteor trails, although
details and the origins of others remain a topic of research.
These meandering bright filaments of sunlight-reflecting ice
crystals are the highest clouds in the Earth’s atmosphere.
The above video captures not only a variety of noctilucent
clouds, but also how their structure varies over minutes. Lower
clouds typically appear dark or fast moving. About halfway
through the video the clouds are joined by aurora. At times, low
clouds, noctilucent clouds, and aurora are all visible simulta