Spring officially begins today (March 20) with the vernal equinox, bringing longer days and warmer temperatures to the Northern Hemisphere ... published in Nature World News.

A rare solar storm illuminated night skies on Friday, beaming neon rays of magenta, green, and blue across much of the northern hemisphere ... looked like around the world: ...

Heat waves have gotten hotter in the Northern Hemisphere in recent decades. Home to about 90% of the world's population ...