Earth’s magnetic field nearly collapsed long ago. What saved it explains why life survived and why the planet remains ...
Far below the ocean’s surface, a hidden circulation system quietly shapes life on Earth. Dense “deep ocean water” formed in just a few remote seas helps drive a global conveyor that redistributes heat ...
Evidence from fossil shells suggests that falling seawater calcium helped lock away carbon dioxide and helped cool Earth after the dinosaurs.
The view of Earth from space is famously familiar—bright blue ocean, swirling gyres of white clouds, touches of terrestrial green. The luminosity of this image is the result of the sun’s rays shining ...