Each Time Machine on this page captures a process in extreme detail over space and time, with billions of pixels of explorable resolution. Choose a time machine and zoom into the image while traveling backwards or forwards through time. Select a Time Warp and the time machine's authors will take you on a guided space-time tour with text annotations explaining what you are viewing. You can even learn how to create your own Time Machines and Warps.
"Check out these new features available in Google Earth 5.0:
* Tours of lunar landing sites, narrated by Apollo astronauts
* 3D models of rovers and landers
* 360-degree photo panoramas
* Rare TV footage of the Apollo missions"