It is one of the cosmological theories that challenges the theory of the big bang and the multiverse with the cyclical and great rebound theories of the universe.

Astronomy studies the planets, solar system, galaxies, stars, nebulae, comets, asteroids, black holes, quasars and meteors among many objects in the universe or cosmos. In the same way, cosmology studies the birth, existence and end of the universe. astrophysics uses the laws of physics and chemistry to study the cosmos and how we adapt to it.

Our solar system is made up of the planets Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. Beyond the planets of our solar system, there are dwarf planets like Pluto, Ceres, Eris, Humea, Makemake. The solar system also includes comets, an asteroid belt, a Kuiper belt, several moons and even natural satellites.

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