Climatologists at NOAA have released updated climate "normals." They explain what "normal" means, how our U.S. climate normals have changed, and how to best make sense of them.
Scientists call it a "diffuse auroral eraser." That's because this newly named aurora first appears as a bright stripe over a diffuse auroral background. Then, when it disappears, it scrubs out the faint auroral light behind it.
Check out the videos in this post to see the hypnotic pulse of swimming jellyfish. Their gentle movement belies a complex flow of water that make these creatures highly energy-efficient swimmers.
Every year millions of tons of dust from the Sahara Desert are swirled up into the atmosphere and carried across the Atlantic. Research suggests that, as the climate changes, Saharan dust transport will decrease.
New research suggests that loss of water on land through ice melting and human-caused factors is changing the movement of Earth's North and South Poles.