Smithsonian Magazine on MSN
Earth Is Getting Dimmer—and the Northern Hemisphere Is Losing Brightness Faster Than Scientists Expected
New research challenges the idea that the hemispheres' matching brightness is a fundamental property of the planet ...
Spring officially begins today (March 20) with the vernal equinox, bringing longer days and warmer temperatures to the Northern Hemisphere. The vernal equinox signals the astronomical start of spring ...
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