Cloudy Earth global map
A study based on 13 years of satellite data estimated that about 67 percent of Earth’s surface is typically covered by clouds.
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Seasonal Year-Long Cycles discovered on the Sun
Our sun is constantly changing, the activity cycle peaks approximately every 11 years. New research shows evidence of a shorter time cycle as well, with activity waxing
Global Lightning Activity map
Lightning in our planet occurs more frequently over land than over the oceans and seems to happen more often closer to the equator.