The Chill of Solar Minimum

Tallbloke's Talkshop

Credit: NOAA
Researchers have found that the last time the thermosphere was rated ‘hot’ was around 2003 (see chart below). Now with a deep solar minimum upon us, the obvious question is: what effect might this have on our planet as a whole?

Sept. 27, 2018: The sun is entering one of the deepest Solar Minima of the Space Age, says Dr. Tony Phillips at Space Weather.

Sunspots have been absent for most of 2018, and the sun’s ultraviolet output has sharply dropped. New research shows that Earth’s upper atmosphere is responding.

“We see a cooling trend,” says Martin Mlynczak of NASA’s Langley Research Center. “High above Earth’s surface, near the edge of space, our atmosphere is losing heat energy. If current trends continue, it could soon set a Space Age record for cold.”

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