ISRO plans a new high-resolution earth satellite

The Indian Space Research Organisation is to build a remote sensing satellite, Cartosat-3, capable of taking images of the earth with a resolution of 0.25 metres. Currently, GeoEye-1 produces the highest resolution earth images taken by a commercial satellite. The American spacecraft, launched in September 2008, is capable of taking panchromatic images with 0.41 metre resolution. WorldView-2, another satellite operated by the same company, DigitalGlobe, offers a best resolution of 0.46 metres. However, in accordance with U.S. regulations, commercially released images from these satellites are degraded to 0.5 metre resolution. More

(Source: The Hindu - Mar 8)