The U.S. and India just launched NISAR, a powerful radar satellite that will be able to monitor changes in Earth's surface that are as small as a centimeter.

Unlike optical sensors, the synthetic aperture radar (SAR) at the heart of the Nisar mission doesn’t rely on visible light. SAR uses microwaves, allo

A powerful new radar satellite, jointly developed by the United States and India, is set to launch today. The satellite is designed to monitor subtle shifts in Earth’s land and ice surfaces, aiding in the prediction of both natural disasters and human-induced hazards.