For most of history, maps of the Moon were based only on the near side, because that’s all we could see from Earth. Danny Robb of Inverting Vision gives a visual history lesson on how we eventually saw the rest.
We wouldn’t be able to get a better look at the far side of the Moon until we invented a way to send cameras there. At the dawn of the Space Age, rockets gave us the ability to do just that. In 1959, Soviet engineers created a series of robotic probes, and launched them toward the Moon. One of these managed a lunar flyby, and was named Luna 3. Engineers equipped Luna 3 with a film camera, capable of developing the exposed film, scanning the images, and transmitting them back to Earth by radio.
Visualize This: The FlowingData Guide to Design, Visualization, and Statistics (2nd Edition)
