Something strange is happening in Earth’s magnetic field, and it has caught NASA’s attention. A massive region of lower magnetic intensity, known as the South Atlantic Anomaly (SAA), has appeared ...

A new satellite has mapped Earth's ocean floors in unprecedented detail, a new study reveals. . The first year of measurements from NASA's Surface Water and Ocean Topography (SWOT) satellite ...

Satellite images of Earth at night have been a curiosity for the public and a tool of fundamental research for at least 25 years. They have provided a broad, beautiful picture, showing how humans have ...