Question

Where is most of the baryonic matter of the universe?

in interstellar gases and stars
in dark matter and dark energy
in planets and natural satellites
in comets and asteroids

Answer 1

Most of the baryonic matter of the universe is found **in interstellar gases and stars**. Baryonic matter is the normal matter that makes up stars, planets, galaxies, and interstellar clouds of gas and dust. While there are smaller amounts of baryonic matter in planets, satellites, comets, and asteroids, the vast majority resides in stars and the gas that fills the spaces between them in galaxies.