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Our Solar System

Updated on August 1, 2012

Planetary Formation

New Solar System
New Solar System

Interstellar Collapsation

The solar system is thought to have originated from the interstellar collapsation of a huge cloud (nebula) of gas and dust. This collapse might have been caused by the explosion of a Supernova, or the shock waves of a spiral galaxy. Recent observations have discovered planetary like forming systems in other regions of the universe.

It is thought that a huge cloud of gas and dust was disturbed by the shock waves of a supernova, causing it to collapse under its own gravity; the cloud fragments began to compress and as the compression progressed, the fragments began to rotate, forming a flatten disk with a bulged center core; the central portion of this cloud accumulated most of the cloud´s mass and began to heat up.

The Primordial Solar Nebula

When the heat reached the temperature of 10 million degrees Kelvin, it began to fuse hydrogen into helium and as the cloud collapsed further, some regions began to condense into what is thought to be the planets and moons of a solar system. The protostar, which is the center core, and the flattened disk continued spinning in the same direction much like the Sun and the planets orbiting around it.

Astronomers call this rotating cloud of gas and dust the primordial solar nebula. The nebular hypothesis, which was first proposed by Kant and Laplace back in the 18th century, provides a complete explanation for some of the features of the solar system, for instance, the general sense of rotation and the planet´s orbits matching the plane of the ecliptic.

Star Forming Regions

The Eagle Nebula
The Eagle Nebula

New Planetary Systems

In recent years, astronomers have discovered with the aid of powerful telescopes evidence that other planetary systems could be forming around its own star from the collapsing of enormous clouds of gas and dust like our own solar system. The nebular hypothesis has been supported by recent observations that resemble planetary systems in the process of formation. It has been observed that new planetary systems might be forming in the Orion, Eagle, and Lagoon nebulas.


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  • unvrso profile image

    Jose Juan Gutierrez 5 years ago from Mexico City

    Thanks jackoburn. I'm going to update it soon.

  • jackcoburn profile image

    jackcoburn 5 years ago from Brisbane, Australia

    Unvrso, again this is such a cool story!

  • unvrso profile image

    Jose Juan Gutierrez 5 years ago from Mexico City

    Thanks for your comments. I try to keep it short and simple.

  • Jlbowden profile image

    James Bowden 5 years ago from Long Island, New York


    Nice and simple explanation of how our own solar system, and possibly other alien system's may have formed. These nebulas are pieces of art in their own right, are they not? Voted your article up and interesting as well.