A researcher from The University of Western Ontario has helped solve a 37-year-old space mystery using lunar images released yesterday by NASA and maps from his own atlas of the moon. Phil Stooke, a professor cross-appointed to Western's Departments of Physics & Astronomy and Geography, published a major reference book on lunar exploration in 2007 entitled, "The International Atlas of Lunar Exploration." Yesterday, images and data from Nasa's Lunar Reconnaissance Orbiter (LRO) were posted. The LRO, scheduled for a one year exploration mission about 31 miles above the lunar surface, will produce a comprehensive map, search for resources and potential safe landing sites, and measure lunar temperatures and radiation levels. Using his atlas and the NASA images, Stooke pinpointed the exact location of the Russian rover Lunokhod 2, discovering tracks left by the lunar sampler 37 years ago after it made a 35-kilometre trek. The journey was the longest any robotic rover has ever been driven on another celestial body.