Although Earth’s two hemispheres lie on opposite sides of the planet and differ in many ways, they share a peculiar commonality—or at least they used to. The Northern and Southern Hemispheres ...

New research reveals that Earth's Northern Hemisphere is growing darker faster than the Southern Hemisphere is. Bill Anders, Public domain, via Wikimedia Commons Earth has been dimming for decades, ...

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 ...

It's Dec. 1, but despite the incoming snow and ice, the official start to winter is still three weeks out. Here's when winter ...

The view of Earth from space is famously familiar—bright blue ocean, swirling gyres of white clouds, touches of terrestrial green. The luminosity of this image is the result of the sun’s rays shining ...

Years ago, scientists noted something odd: Earth's Northern and Southern Hemispheres reflect nearly the same amount of sunlight back into space. The reason why this symmetry is odd is because the ...

Earth has been dimming for decades, reflecting less light back into space—and the amount of light reflected by the Northern Hemisphere is decreasing more quickly than that of the Southern Hemisphere, ...