In order to answer these important and profound questions, the c's of astronomers utilized the "fossil" records left as relics imprinted by stars inside the spectra of remote, dead galaxies--thus providing precious clues concerning their metal content, age, and element abundances. All atomic elements which are heavier than hydrogen and helium are termed metals from the jargon of astronomers. Hydrogen (the lightest and quite a few abundant atomic element inside the Universe) and helium were both born inside the Big Bang fireball (Big Bang nucleosynthesis), while the many other, heavier atomic elements listed from the familiar Periodic Table were manufactured inside nuclear-fusing fires in the stars--or, alternatively, from the incandescent explosive rage with their supernovae deaths (stellar nucleosynthesis). ernährung muskelaufbau dietas para ganar masa muscular comment prendre de la masse musculaire steroider köpa najlepsza odzywka na mase