The USS Indianapolis played an important role in WWII history, including the delivery of parts for the atomic bombs that would eventually drop on Japan. However, it met a grim fate: not only did a Japanese submarine sink it near the end of the war, but its wreck has remained elusive despite multiple expeditions over the past 72 years. Technology just provided some resolution, though. A team piloting Microsoft co-founder Paul Allen's research vessel, the R/V Petrel, has found the wreck of the Indianapolis at the bottom of the Philippine Sea. The discovery was helped by a mix of better information and the equipment aboard the Petrel itself.