Slashdot discusses a story named UK Plans Space Based Radar System.
Their summary: "The UK government is to kick-start an innovative project to fly radar satellites around the Earth, with an initial investment of £21m. NovaSar-S would have a number of viewing modes that could enable it to perform a wide range of roles, from flood monitoring and land cover management to disaster mapping and maritime enforcement — notably ship tracking and oil spill detection."
Those wanting to learn more will find the SSTL NovaSAR-S brochure and datasheet here. Some info: S-Band radar, maximum spatial resolution of 6 meters (stripmap mode), single, dual and triple polarization capabilities.