Solar System And Planets
The Solar System is the gravitationally bound system that includes the Sun and its orbiting objects. The four gas and ice giants, as well as the four terrestrial planets, are the largest of the worlds that orbit the Sun directly, followed by an unknown number of dwarf planets and uncountable minor Solar System components. Two of the natural satellites that circle the Sun indirectly are larger than Mercury, the smallest terrestrial planet, and one is nearly as big.
The Solar System was formed by the gravitational collapse of a massive interstellar molecular cloud 4.6 billion years ago. The Sun holds the great bulk of the system's mass, with Jupiter holding the majority of the remaining mass. Mercury, Venus, Earth, and Mars are the four planets of the inner solar system.
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