In 1968, the Apollo 8 astronauts became the first people to orbit the moon. They were on live television on Christmas Eve, and as the camera revealed the lunar landscape passing beneath them for all of us on Earth to see, they read from the Book of Genesis and then wished a Merry Christmas to "everyone on the good earth."
They took plenty of photos which got developed when the film returned to Earth. This is one of them. I particularly like it because those two "fault lines" and the crater in between them are easily visible, when the lunar phase is right, using even small telescopes on Earth. I have seen that region of the moon myself (not in such detail of course), so when I look at this photo I almost think, "Yes, I've been there too!"
(For anyone who cares: that is Cauchy crater, between Cauchy Rill and Cauchy Scarp.)
@daydeeo Augustine-Louis Cauchy, French mathematician from the late 18th - early 19th century. His name comes up in textbooks on real and complex analysis.
