Japan launched its third intelligence-gathering satellite on Monday, enhancing its ability to monitor neighboring North Korea two months after Pyongyang shocked the region with a barrage of missile tests. Japan's space agency, JAXA, launched the optical satellite from the southern island of Tanegashima, adding to a pair of satellites that were fired into orbit in March 2003. Two other satellites were lost when a rocket failed in November that year. A further radar satellite is set to be launched later this year, completing the set of four, Reuters reported.