A Curious Blue Swirl of Light Captivates Sky Watchers in Europe The Met Office, Britain’s weather service, said the light was most likely caused by a SpaceX rocket launch. Advertisement 0:27 NOW PLAYI ...
At a minimum, when you see the sky appear more green-blue, you can likely gather there’s a lot of water and hail in that thunderstorm, though the time of day and the angle of the sun can play a ...
It's also the reason the sky usually looks blue, and can potentially be other colors. Read more: The 13 Most Breathtaking ...