Chromaffin cell. Chromaffin cells, also pheochromocytes, are neuroendocrine cells found mostly in the medulla of the adrenal glands (located above the kidneys) in mammals.
The Moon has no appreciable atmosphere. The sky is always black and the radiation from the Sun strikes with full force on the surface of the Moon. The lack of atmosphere produces temperature extremes on the Moon that range from -250 degrees F in the dark to +250 degrees F in the light.
The Moon orbits around the Earth in an elliptical path, with one side of the orbit closer to Earth than the other. The side of the orbit closer to the Earth is called the lunar perigee, while the side futher from the Earth is called the lunar apogee.