It might seem unlikely that vegetation can survive in a sandy coastal environment that receives little rain, but plant communities along Peru’s southern coast have found a way. In December 2016, we ...

Two hours before SMAP’s early morning launch Saturday, Vanessa Escobar was on NASA TV, explaining a new effort to link the soil-moisture-measuring satellite with the people who will put it to use.

Throughout its long history, Earth has warmed and cooled time and again. Climate has changed when the planet received more or less sunlight due to subtle shifts in its orbit, as the atmosphere or ...