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2. Solar System - Wikipedia

   en.wikipedia.org/wiki/Solar_System

   The Solar System remains in a relatively stable, slowly evolving state by following isolated, gravitationally bound orbits around the Sun. [28] Although the Solar System has been fairly stable for billions of years, it is technically chaotic, and may eventually be disrupted. There is a small chance that another star will pass through the Solar ...

3. Nebular hypothesis - Wikipedia

   en.wikipedia.org/wiki/Nebular_hypothesis

   The nebular hypothesis is the most widely accepted model in the field of cosmogony to explain the formation and evolution of the Solar System (as well as other planetary systems ). It suggests the Solar System is formed from gas and dust orbiting the Sun which clumped up together to form the planets. The theory was developed by Immanuel Kant ...

4. Formation and evolution of the Solar System - Wikipedia

   en.wikipedia.org/wiki/Formation_and_evolution_of...

   Formation and evolution of the Solar System. Artist's conception of a protoplanetary disk. There is evidence that the formation of the Solar System began about 4.6 billion years ago with the gravitational collapse of a small part of a giant molecular cloud. [ 1] Most of the collapsing mass collected in the center, forming the Sun, while the ...

5. History of Solar System formation and evolution hypotheses

   en.wikipedia.org/wiki/History_of_Solar_System...

   The most widely accepted model of planetary formation is known as the nebular hypothesis. This model posits that, 4.6 billion years ago, the Solar System was formed by the gravitational collapse of a giant molecular cloud spanning several light-years. Many stars, including the Sun, were formed within this collapsing cloud.

6. Geology of solar terrestrial planets - Wikipedia

   en.wikipedia.org/wiki/Geology_of_solar...

   t. e. The geology of solar terrestrial planets mainly deals with the geological aspects of the four terrestrial planets of the Solar System – Mercury, Venus, Earth, and Mars – and one terrestrial dwarf planet: Ceres. Earth is the only terrestrial planet known to have an active hydrosphere . Terrestrial planets are substantially different ...

7. Timeline of Solar System astronomy - Wikipedia

   en.wikipedia.org/wiki/Timeline_of_Solar_System...

   1845 – John Adams predicts the existence and location of an eighth planet from irregularities in the orbit of Uranus. [ 138] 1845 – Karl Ludwig Hencke discovers a fifth body between Mars and Jupiter, Astraea [ 139] and, shortly thereafter, new objects were found there at an accelerating rate.

8. Common Core - Wikipedia

   en.wikipedia.org/wiki/Common_Core

   Common Core. The Common Core State Standards Initiative, also known as simply Common Core, was a multi-state educational initiative begun in 2010 with the goal of increasing consistency across state standards, or what K–12 students throughout the United States should know in English language arts and mathematics at the conclusion of each ...

9. Historical models of the Solar System - Wikipedia

   en.wikipedia.org/wiki/Historical_models_of_the...

   Historical models of the Solar System first appeared during prehistoric periods and are being updated to this day. The models of the Solar System throughout history were first represented in the early form of cave markings and drawings, calendars and astronomical symbols. Then books and written records became the main source of information that ...