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.
Others say that it was captured by Earth's gravitation. The moon is Earth's satellite, and one of the only satellites which is the closest in size to the planet that it orbits. The moon has a diameter of 3476 km and orbits the earth at a distance of 384,400 km at a speed of 3600 km/hr. The moon has 8 different phases within its period which lasts 29.5 days.