Noctilucent cloud
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Night clouds or noctilucent clouds are tenuous cloud-like phenomena that are the "ragged-edge" of a much brighter and pervasive polar cloud layer called polar mesospheric clouds in the upper atmosphere, visible in a deep twilight. They are made of crystals of water ice. Noctilucent roughly means night shining in Latin. They are most commonly observed in the summer months at latitudes between 50° and 70° north and south of the equator. They can only be observed when the Sun is below the horizon.
| NLC time-lapse movies NLC time-lapse movies www.misu.su.se/~jacek/nlcmovies.html - Web |
| AIM satellite mission AIM satellite mission aim.hamptonu.edu - Web |
| BBC News Article - Mission to Target Highest Cloud... BBC News Article - Mission to Target Highest Clouds news.bbc.co.uk/1/hi/sci/tech/5021778.stm - Web |
Gallery for «Noctilucent cloud»
Average relevance
| Noctilucent Cloud Observers' Homepage Noctilucent Cloud Observers' Homepage www.nlcnet.co.uk - Web |
| Solar Occultation for Ice Experiment (SOFIE) Solar Occultation for Ice Experiment (SOFIE) sofiedata.org - Web |
| Southern Noctilucent Clouds observed at Punta Aren... Southern Noctilucent Clouds observed at Punta Arenas, Chile sites.google.com/.../nlc - Web |
| Astronomy Picture of the Day: Noctilucent Clouds O... Astronomy Picture of the Day: Noctilucent Clouds Over Sweden antwrp.gsfc.nasa.gov/apod/ap060718.html - Web |
| BBC Article - Spacecraft Chases Highest Clouds BBC Article - Spacecraft Chases Highest Clouds news.bbc.co.uk/1/hi/sci/tech/7137905.stm - Web |
| CNN Article - Rocket launch prompts calls of stran... CNN Article - Rocket launch prompts calls of strange lights in sky edition.cnn.com/2009/US/09/20/strange.lights/index.html - Web |
| BBC News - Audio slideshow: Noctilucent clouds BBC News - Audio slideshow: Noctilucent clouds www.bbc.co.uk/news/science-environment-10635796 - Web |
| The Harbingers of Change Can Now Be Seen All Aroun... The Harbingers of Change Can Now Be Seen All Around the World! Mysterious Noctilucent Clouds Brighten Up Night Skies www.sott.net/.../231548-The-Harbingers-of-Change-Can-Now-Be-Seen-All-Around-the-World-Mysterious-Noctilucent-Clouds-Brighten-Up-Night-Skies - Web |
Low relevance
| Noctilucent cloud in Belarus Noctilucent cloud in Belarus vimeo.com/26030154 - Web |
