Electric-Blue Clouds Over Antarctica

There’s an electric blue glow in the skies above Antarctica. The strange glow is coming from noctilucent clouds. That’s according to recent images from NASA’s AIM spacecraft (Aeronomy of Ice in the Mesosphere), which monitors these clouds for the whole Earth. The season for night-shining clouds in the Southern Hemisphere is November to April, so they are right on schedule. Night clouds…

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What is a Snowflake?

A snowflake is a single ice crystal that has achieved a sufficient size, and may have amalgamated with others, then falls through the Earth’s atmosphere as snow.  Each flake nucleates around a dust particle in supersaturated air masses by attracting supercooled cloud water droplets, which freeze and accrete in crystal form. Complex shapes emerge as the flake moves through differing temperature and humidity zones in the atmosphere, such that individual snowflakes differ in detail from…

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2017 Arctic Report Card

  Now in it’s twelfth year, the 2017 Arctic Report Card was released December 12, 2017 at the annual American Geophysical Union fall meeting in New Orleans. The NOAA-sponsored peer-reviewed report brings together the work of 85 scientists from 12 nations. The report shows the warming trend that’s transforming the Arctic region is persisting. The Arctic shows no sign of…

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California Fires: A View From Space

The 2017 California wildfire season is the worst on record, according to the California Department of Forestry. There are several fires burning across Southern California. The heavy winter rains earlier this year caused a spurt in the growth of vegetation, add an arid summer and unusually hot fall, mixed with the Santa Ana’s, the typical fall high winds, has caused…

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  Earth’s night skies continue to get brighter despite efforts of groups to reduce the effects of artificial lighting. One particular group, the International Dark-Sky Association has campaigned for decades to reduce artificial light at night. Yet a new study shows our night skies are still brightening at a yearly rate of 2 percent. A study shows a possible correlation between…

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Do Dolphins Get Alzheimer’s?

    Could Dolphins get Alzheimer’s Disease? Yes, According to a team of scientists from the US and the UK. In a recent report, it is stated that they discovered pathological signs of Alzheimer’s disease in dolphins. It’s the first time that these signs have been discovered together in marine animals. It is a fact that dolphins brains are similar in…

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