Neither Porto Alegre, Brazil, nor Valencia, Spain, are in the news this week. But they have been before, and almost certainly will be again, as bouts of extreme drought, followed by deluge, become ...

Sunita Williams and Butch Wilmore, stranded at the International Space Station since June last year, are finally being ...

We don’t know for sure, but the answer is inextricably linked to the moment when water first materialized in the cosmos — and ...

The relationship between topography and the terrestrial water cycle has been documented for thousands of years, yet there is ...