Solar System

The Solar System is the gravitationally bound system of the Sun and the objects that orbit it, either directly or indirectly. Of the objects that orbit the Sun directly, the largest are the eight planets, with the remainder being smaller objects, the dwarf planets and small Solar System bodies. Of the objects that orbit the Sun indirectly—the natural satellites—two are larger than the smallest planet, Mercury. The Solar System formed 4.6 billion years ago from the gravitational collapse of a giant interstellar molecular cloud. The vast majority of the system's mass is in the Sun, with the majority of the remaining mass contained in Jupiter. The four smaller inner system planets, Mercury, Venus, Earth and Mars, are terrestrial planets, being primarily composed of rock and metal. The four outer system planets are giant planets, being substantially more massive than the terrestrials.

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Earth has extra moons, and they may hold the secrets of our solar system's past

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Worlds at the far reaches of the solar system could support life

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Webb telescope makes unexpected find in outskirts of our solar system | Mashable

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Could the solar system be teeming with interstellar objects? We'll soon find out (op-ed)

Passing Stars Changed the Orbits of Planets in the Solar System

The Vera Rubin’s Keen Eye On Our Solar System Will Inspire Future Missions

The Solar System has a new ocean — it’s buried in a small Saturn moon

Planets Orbiting Dead Stars Foretell the Solar System's Far-Future Fate

Asteroid 2024 BX1 fragments confirmed to be rare meteorites as old as the solar system itself

Why Is Our Solar System Flat?

Is that Mars? The UK's new space minister tackles the solar system

Are they exomoons or not? Scientists debate existence of 1st moons seen beyond our solar system

Space mysteries: Does the sun move in the solar system?