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.
Titan has a very thick atmosphere which is mostly nitrogen. Earth's atmosphere is also mostly nitrogen. Saturn also has many icy moons like Mimas which has a large crater that is 1/4 the diameter of the moon, and Enceladus which has very dark material covering one side and very bright material on the other side.