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 elements sodium (Na) and potassium (K) have been detected in the Moon's atmosphere using Earth-based spectroscopic methods, whereas the isotopes radon -222 and polonium -210 have been inferred from data obtained by the Lunar Prospector alpha particle spectrometer.
The moon has no atmosphere and thus the gravity is very weak compared to Earth. The moon cannot keep gases that make up air. Also, there is no wind on the moon and the temperature varies dramatically during the course of a day from 100 degrees Celsius in the afternoon to -175 degrees Celsius at night.