It's hard to believe today--especially since you can just look up at the sky and see our crater-covered moon with your naked eyes--but there was a time when people weren't intimately familiar with what the surface of our nearby neighbor looked like. Before the Renaissance-era invention of the telescope, the moon was generally thought to be a perfect, unblemished sphere. These days, with even a moderate telephoto lens, you can photograph the moon and see the surface details for yourself.Related StoriesFacebook is the new religion, Ashton Kutcher saysTwitter
