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Post by Deleted on Jul 9, 2019 6:43:29 GMT -6
Electric-blue night clouds are expanding around the globe, says NASA Every year, for a period of between five to 10 days, the night skies over Antarctica and the Arctic Circle are visited by an unusual phenomenon known as noctilucent clouds (NLCs) or polar mesospheric clouds (PMCs). Residing at an altitude between 47 to 53 miles, these electric-blue clouds are the highest in Earth's atmosphere and can only be observed well after the sun has dipped below the horizon at twilight. When NASA launched a balloon from Sweden across the Arctic towards Canada to observe the clouds in July 2018, that was just the beginning. The balloon captured 6 million high-resolution images over the course of five days, which the video above shows. www.mnn.com/earth-matters/climate-weather/blogs/electric-blue-night-clouds-expanding-around-globe-says-nasa
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Post by jojustjo on Jul 10, 2019 10:05:12 GMT -6
Pretty cool whatever they be
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Post by paulette on Jul 14, 2019 12:53:46 GMT -6
I think I saw this last night on Vancouver Island. Our living room curtain was open. It was 10:30 pm and our window faces East. (It could not be a remanent of the sunset. That happens on the other side of our house (west). It was a glowing blue with clouds in front if it. I pointed it out and Terry said, "Oh its just the lights from Courtenay." But the light reflecting off the clouds from street lights and such is a yellowish color. Not blue. I'll look again tonight.
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Post by jojustjo on Jul 14, 2019 21:56:40 GMT -6
If you get a chance Paulette...could you snap a pic or two?? Nice to have cool shots.
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