
Nebular hypothesis - Wikipedia
According to the nebular theory, stars form in massive and dense clouds of molecular hydrogen — giant molecular clouds (GMC). These clouds are gravitationally unstable, and matter …
The Nebular Theory – Introduction to Astronomy
So…how did the solar system form and end up with all these different types of objects? Currently the best theory is the Nebular Theory . This states that the solar system developed out of an …
8.2: Origin of the Solar System—The Nebular Hypothesis
Our solar system formed at the same time as our Sun as described in the nebular hypothesis. The nebular hypothesis is the idea that a spinning cloud of dust made of mostly light elements, …
Nebular Theory Might Explain How Our Solar System Formed
Oct 9, 2023 · The nebular theory, also known as nebular hypothesis, presents one explanation of how the solar system formed. Pierre-Simon, Marquis de Laplace proposed the theory in 1796, …
Solar nebula | Formation, Accretion, Protoplanetary Disk ...
Oct 11, 2025 · The favoured theory proposes that the solar system formed from a solar nebula, where the Sun was born out of a concentration of kinetic energy and heat at the centre, while …
1.2. How did our Solar System form? - NASA Astrobiology
Nov 13, 2025 · The Nebular Theory is the scientific theory for how stars and planets form from molecular clouds and their own gravity. The majority of the material within the giant molecular …
The Origin of the Solar System - University of Rochester
The composition of the Sun, the two classes of planets, etc. explained by the nebula hypothesis: We know the nebular gas would have been mostly hydrogen and we see this in the …