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.
Because of the lack of atmosphere, there is no air temperature on the moon. Rather, it is measured by surface temperature. Different areas of the moon will have extreme temperatures, varying from boiling hot to freezing cold depending on whether the area is being hit by sunlight or if it is not.