The area pictured in this false-color Sentinel-1B image was generated using multiple image polarizations, where different colors indicate varying vegetative states of the land. Located in the region of Vojvodina in northern Serbia, the agricultural fields create a distinct pattern of geometric shapes. Among the fields, there are a number of small towns with grid layouts, inspired by ancient Greece’s Hippodamus, known as the ‘father of European urban planning.’ Credit: Copernicus Sentinel data 2017, processed by ESA; courtesy J. Hickey

This dual-pol RGB decomposition Sentinel-1B SAR image shows the dendritic structure of the Plaquemines-Balize Delta (also known as the Bird’s Foot Delta) on the Mississippi River, formed as a result of sediment deposition from the soil-laden waters of America’s largest river. Credit: Copernicus Sentinel data 2018, processed by ESA; courtesy R. Gens, ASF

This ALOS AVNIR-2 near-infrared image shows a stark contrast between the productive agricultural region of the Imperial Valley and the Sonoran desert of southern California and northern Mexico. AVNIR-2 was a visible and near infrared radiometer used to observe land and coastal zones. AVNIR-2 imagery provides good historical spatial land-coverage and land-use classification maps for monitoring regional environments. ©JAXA 2007; courtesy D. Atwood

In this UAVSAR Pauli color decomposition, Salt Lake City appears in shades of red because of the way the vertical structures of the city reflect the transmitted radar signals back to the aircraft. The forested Wasatch mountains to the east, as well as vegetated areas within the city, produce a more diffuse type of signal scattering, and this is assigned the color green. Credit: NASA/JPL 2020

This image of the upper Fraser River in British Columbia, Canada, was acquired by the Spaceborne Imaging Radar C-band (SIR-C) SAR instrument onboard the Space Shuttle Endeavor on October 7, 1994. The Yellowhead Highway can be seen running parallel to the river. ASF is currently processing the data collected during this mission to a digital format, and much of the data are available to download Credit: NASA 2018