Plants growing at the bottom of giant sinkholes in China are so awash in nutrients, they grow faster than their surface-dwelling counterparts,...
QUICK FACTSName: Tiankeng, or "heavenly pits"Location: Guizhou, Guangxi, Yunnan and Chongqing in southwestern ChinaCoordinates: 24.853407656078527,...
We live in a light-polluted world, where streetlamps, electronic ads and even backyard lighting block out all but the brightest celestial...
