Rivers start in mountains, join other streams as they flow downhill, then channel into an open ocean or lake. Right? Well, ...

Older people in Yunnan can still remember the days when merchants with mules plied the Tea Horse Road: the last few caravans ...

The Sanjiangyuan region, or Three River Source, in the Qinghai-Tibet Plateau, is viewed as the home of the headstreams of the ...

This op-ed argues that domestic distractions have left the U.S. unprepared for a conflict with a peer enemy — China — bent on ...

Martian lake beds and deltas reveal the Red Planet’s watery past. But many puzzles remain, scientist Bruce Jakosky says.