http://www.youtube.com/watch?v=X7D2uuAwiwY&feature=relatedKAGUYA taking "Apollo 17 Landing Site" by Terrain Camera [HD]
Ролик как бы иллюстрация к этой статье:To Go Where no Spacecraft Has Gone Before 
---> название вообще улёт, речь в статье идёт о предстоящих посадках людей на Луну:
Добраться туда, где ещё не бывало космического корабляDecember 30, 2008
http://www.moontoday.net/news/viewpr.html?pid=27277Though the last Apollo mission alighted on the moon more than three decades ago, the story of their landings, and
where each of those 24 lunar module footpads settled into the soil, is still something Epp considers worthy of note. He is the manager of NASA's Autonomous Landing and Hazard Avoidance Technology (ALHAT) project - an undertaking designed to provide America's next moon crews with invaluable data that could make the difference between a good day and a very bad day.
The ALHAT system is designed to automatically detect hazards such as craters and boulders and then direct the lander to the safest touchdown location available. It is a job ALHAT must perform - on-the-fly.
Boulders, craters and sloping hillsides are hazardous surface features that are easily understood. Any one big enough - and in the right place - can leave a lander at a precarious angle or even cause it to topple over. A lunar surface hazard perhaps not so easily understood, but just as important, is the blinding dust that can be kicked up by a lander's rocket exhaust.
That dust can block an astronaut's view of the boulders, slopes or craters below. "A laser is why ALHAT can operate just as well in the dark as in the light," said Johnson. "When we zap the surface with laser light, some of it bounces back. We have receivers that can read the signature of this returned laser light. We put that information through specially-designed computer algorithms, and what comes out is a three-dimensional glimpse of the lunar surface. That happens 30 times a second."
With 30 separate three-dimensional glimpses of the lunar surface coming through each second, the result quickly becomes a detailed 3-D map of the moon's undulating surface. Mountains, craters, hills and boulders you cannot see out your window appear on screen. ALHAT automatically compares these surface features with a three-dimensional lunar map stored in its memory.
"That is called Terrain Relative Navigation," said Johnson. "It is very important to know early in the descent that you are on the correct trajectory. And if you are not on the proper course, the sooner you know that, the easier it is to rectify things."
"When the crew begins to compare the ALHAT information with what they see out the window, that is called the "human interaction interval," said Epp. "They will use all the information available to them in their decision whether to continue to the original landing target, divert to a new landing target, or abort the landing entirely."
You decide to execute a short-range divert, aiming to land to the right of your initial target - but still well within the planned landing zone. The lander responds to your commands and soon you are 100 feet directly above your newly planned landing site.
The plume from its rocket engine is sending dust streaming out in sheets, obscuring your visual of the surface as you begin a final, vertical descent.. But your computer screens are displaying the surface below as ALHAT sees it, and everything is go. Touchdown...