P212 CEEFAX 212 Fri 7 Feb 19:20/11       The United States space agency NASA has announced the latest findings in the salvage of the shuttle Challenger. The tip of the huge fuel tank has been brought to port in Cape Canaveral, Florida. NASA also said it believes it has located the shuttle's second rocket booster under the ocean, 15 miles from the launch pad. The findings were announced to a presidential panel investigating the shuttle explosion, in which seven astronauts died. News index 102/202 Newsreel 119/219