A mission that has changed the way we study Earth's gravitational forces has been recognized with a prestigious award for helping scientists better understand our home planet.
A team of NASA and university scientists has detected an ongoing reversal in Arctic Ocean circulation triggered by atmospheric circulation changes that vary on decade-long time scales.
Within the frozen confines of Earth's polar regions lie secrets -- clues scientists believe can help unravel some of the mysteries that drive Earth's climate.
Recent space observations of freshwater storage by the Gravity Recovery and Climate Experiment (Grace) are providing a new picture of how Earth's most precious natural resource is distributed globally and how it is changing.