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HomeHomework HelpastronomyFormation of Solar System

Formation of Solar System

The process of the Solar System's creation, where planets, asteroids, and comets formed from a flat disk of material around the Sun. Inner planets were warmer, smaller, and rocky, while outer planets were colder and larger, with ice mixed in. Gravity from outer planets influenced the movement of ice chunks, leading to the formation and distribution of comets.

intermediate
3 hours
Astronomy
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Overview

The formation of the solar system is a complex process that began around 4.6 billion years ago with the collapse of a giant molecular cloud. This collapse led to the formation of the Sun at the center, surrounded by a rotating disk of gas and dust. Over time, particles in this disk began to collide ...

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Key Terms

Nebula
A giant cloud of gas and dust in space.

Example: The Orion Nebula is a well-known star-forming region.

Protoplanetary Disk
A rotating disk of dense gas and dust surrounding a young star.

Example: The protoplanetary disk around our Sun led to the formation of planets.

Accretion
The process by which particles clump together to form larger bodies.

Example: Accretion helped form the Earth from smaller planetesimals.

Planetesimal
Small celestial bodies that form from dust and gas in a protoplanetary disk.

Example: Planetesimals eventually coalesce to form planets.

Differentiation
The process by which a planet develops layers based on density.

Example: Earth's core is formed from heavy metals due to differentiation.

Solar Wind
A stream of charged particles released from the Sun.

Example: Solar wind can affect the atmospheres of planets.

Related Topics

Exoplanets
Study of planets outside our solar system and their formation.
intermediate
Astrobiology
Exploration of the potential for life beyond Earth.
intermediate
Planetary Geology
Study of the geological features and processes of planets.
advanced

Key Concepts

Nebular HypothesisProtoplanetary DiskAccretionPlanetary Differentiation