Credit: Umbra The National Reconnaissance Office (NRO) is honing a plan to procure commercial synthetic aperture radar (SAR) data by early next year. The office’s executive branch is refining a ...

A Long March rocket launch sent four satellites into orbit late Friday to provide commercial X-band radar imaging services. A Long March 2C rocket lifted off at 10:39 p.m. Eastern Nov.

Although we think of air-to-air radar as a relatively modern invention, it first made its appearance in WWII. Some late war fighters featured the AN/APS-13 Tail Warning Radar to alert the pilot ...