Jan 3, 2026 · Solar system, assemblage consisting of the Sun and those bodies orbiting it: 8 planets with more than 400 known planetary satellites; many asteroids, some with their own …

The Solar System currently moves through a cloud of interstellar medium called the Local Cloud. The closest star to the Solar System, Proxima Centauri, is 269,000 AU (4.25 ly) away. Both …

99.86% of the solar system’s mass is found in the Sun. The majority of the remaining 0.14% is contained within the eight planets. The four smaller inner planets, also known as the …

Dec 4, 2025 · Our solar system includes the Sun, eight planets, five officially named dwarf planets, hundreds of moons, and thousands of asteroids and comets. Our solar system is …

Mar 29, 2025 · Learn about the solar system in astronomy. Get its definition, discover the planets in order, and get interesting facts.

This digital collage brings together our solar system and points beyond in one view.

Dec 3, 2024 · How many planets are in the solar system? How did it form in the Milky Way galaxy? Learn facts about the solar system's genesis, plus its planets, moons, and asteroids.

May 2, 2025 · In this guide, we'll explore how the solar system formed, its structure, and the many fascinating objects it contains.

Jul 12, 2025 · Forget textbook platitudes: our Solar System is a laboratory of physical paradoxes where mass, motion, and matter stage spectacles that challenge classical intuition. A single …

Our Solar System contains planets, comets and asteroids all of which travel around our star, the Sun. Until 2006 nine main planets were listed, but under the current classification there are …