http://www.skyandtelescope.com/news/116932598.html

Ever since NASA's Lunar Reconnaissance Orbiter began circling the Moon at low altitude in mid-2009, planetary scientists and the public have marveled at the incredible trove of observations it's been beaming back to Earth. Most often in the spotlight are the jaw-dropping closeups of Apollo landing sites by the Lunar Reconnaissance Orbiter Camera (LROC). It can resolve the surface at 2 feet (0.5 m) per pixel — good enough to reveal even the paths worn in the lunar soil by the astronauts' boots.