sundog1

Artificial Clouds and Sun Halos

May 1, 2015

It’s almost never mentioned– mostly because it’s almost never noticed– but sun halos are usually caused by artificial clouds. That is, contrails. Rainbows circling the sun like this one are caused by light reflecting through tiny ice crystals. (More on Wikipedia) Those who notice artificial clouds spawned by jet aircraft (less than 1% of people […]