What is the universe made of?
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Astronomers like to call all material made up of protons, neutrons and electrons "baryonic matter".
Hydrogen is the most abundant element in the Universe; helium is second. However, after this, the rank of abundance does not continue to correspond to the atomic number; oxygen has abundance rank 3, but atomic number 8. All others are substantially less common.
Hydrogen is the most abundant element in the Universe; helium is second. However, after this, the rank of abundance does not continue to correspond to the atomic number; oxygen has abundance rank 3, but atomic number 8. All others are substantially less common.
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The universe is made up of several planets(many of which are undiscovered),stars, nebulae, black holes,comets,galaxies, meteorites,meteors, asteroids and the sun. The universe is still expanding every second.
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