Lockheed Martin approved by US Air Force to implement Space Fence to be operational by 2017, reports Universe Today. The system will track, detect and catalog over 200,000 pieces of space junk. Space Fence will revolutionize "space situational awareness" and make it a predictive system rather than merely a reactive one. "The current system has tracking locations in the US only and has a huge ‘blind spot’ by not supplying information about debris in the southern hemisphere. But Space Fence will provide global coverage from three ground-based radar located at strategic sites around the world," informs article. Space Fence seems an impressive new tracking system to catalogs not only space debris but all low orbit objects.