Friday, 1 February 2019

The Polar Vortex Is Causing Striking Solar Phenomena Called 'Sundogs.' Here's What to Know

The Polar Vortex Is Causing Striking Solar Phenomena Called 'Sundogs.' Here's What to KnowSundogs form when sunlight refracts off ice crystals in the atmosphere and result in colored spots of light near the sun.




from Yahoo News - Latest News & Headlines https://yhoo.it/2UwQVPU

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3M Refuses White House Directive to Send Masks from Singapore to U.S., Citing Concern for Asian Medical Workers

Health care manufacturer 3M has resisted pressure from the White House to import about 10 million N95 respirator masks from the company'...