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's so-called atmosphere is so thin that it's a better vacuum than you can get in many labs on Earth. You could compress the entire lunar atmosphere into less than two hundred 300psi diving cylinders. The colors in your [lovely] picture are very exagerated.