ALT Inside the dim Orion spacecraft, a window in the center of the image shows a brightly lit Earth and an astronaut sits on the right side looking back at Earth. Credit: NASA

ALT Inside the dim Orion spacecraft, a window in the center of the image shows a brightly lit Earth and an astronaut sits on the right side looking back at Earth. Credit: NASA

ALT The Moon against the black of space. The right half is heavily marked with darker splotches and craters, including a very large patch that fills most of the upper right quadrant. The left side of the Moon, which is not visible from Earth, is much more uniformly gray. It has small divots and craters, but they do not change the surface color. There is one prominent darker spot between 7 and 8 o'clock on the Moon's surface.