Collisions between bodies have occurred continually up to the present day and have been central to the evolution of the Solar System. Beyond Neptune, many sub-planet sized objects formed. Several …

Discover how a giant interstellar cloud known as the solar nebula gave birth to our solar system and everything in it.

In the book Evolution of the Solar System by Professors Hannes Alfvén and Gustav Arrhenius' provided by NASA (National Aeronautics Space Administration), they describe theorized five stages …

Dec 7, 2025 · Solar system - Origin, Planets, Formation: As the amount of data on the planets, moons, comets, and asteroids has grown, so too have the problems faced by astronomers in forming …

Understanding the origin and long-term evolution of the Solar System is a fundamental goal of planetary science and astrophysics.

Of great importance are questions on how contemporary natural conditions appeared on solar system planets: specifically, why the three neighbor inner planets—Earth, Venus, and Mars—reveal different …

Our solar system began forming in a concentration of interstellar dust and hydrogen gas. The cloud contracted under its own gravity and our proto-Sun formed in the center, surrounded by the swirling …

Discover the formation of our solar system and its role in making Earth a habitable place for life.

Aug 6, 2025 · We will discuss how the Sun formed, how planets grew, and how the system evolved over billions of years. We will also explore current theories about how these changes will affect the Solar …

The solar system was formed 4.6 ± 0.1 × 10 9 years ago. Astronomers have recognized a number of observable facts about the solar system that are not otherwise the result of obvious physical laws (for …