night sky

(Newser) - Dark skies are being engulfed by light all over the world, creating some unexpected consequences, the Wall Street Journal reports. Over two-thirds of the world's people— including nearly all Americans—can no longer see "what is possibly the most extraordinary natural wonder," said one astronomer. The amount of...

(Newser) - Scientists say they have solved the mystery of what causes the dazzling northern lights to seemingly dance across the sky, Wired reports. The light show, also known as aurora borealis, is triggered by explosions of magnetic energy about 80,000 miles away. The findings—drawn from five NASA satellites working...