One of my favorite "tourist attractions" on the Moon

Since the moon has no atmosphere to diffuse light, there is no "twilight." You have abrupt contrast between light and pitch black.

Look at the northwest (upper left) in this photo. There is a lava bay (The Sinus Iridum) whose western half is in darkness. But the western "shore" of that bay is a mountain range whose peaks are already illuminated by the sun, which has not yet risen high enough in the lunar sky to be visible from the floor of the bay. This effect has been called "the jeweled handle."

Imagine actually standing there. When you look to the west, you see brightly lit peaks "floating" in the black sky, as the lower portion of the mountains is still untouched by the sun's rays.

I want to go!