Evolution of the Early Solar System in Terms of Big History and Global Evolution


Author: Grinin, Leonid
Almanac: Evolution:Evolutionary Trends, Aspects, and Patterns

Abstract

The present contribution is devoted to some aspects of history and evolution of the early Solar System. The origin of the Sun, Earth, other planets and its satellites has long been a matter of great concern for people. Over the past few decades astronomers and cosmologists have considerably advanced in the perception of the structure, history, and evolution of the Solar System. However, one can hardly speak about a proper narrative here; we more often work with hypotheses. The present paper is structured as follows. First, it outlines the history of formation of the Solar System in the first billion years of its existence, when the most considerable changes took place. Then while describing certain formative processes we show the opportunities to define them in terms of evolutionary laws and rules. Of course, this paper presents only a few such laws and rules. We suppose that the present study will be of interest to a reader in two ways. First, there are quite a few consistent and brief surveys of the Solar System history accounting the latest achievements in astrophysics and cosmology. Meanwhile, they are very important and productive for theorizing part of Big History. Second, the discussion employing the general evolutionary laws and rules allows defining some common features in the formation of the Solar System and especially of its planetary system which are characteristic for every level and stage of Big History. This brings us to the idea of the integrity of Big History not only in historical and systemic terms but also with respect to its integrity in detecting general laws, patterns and mechanisms.

Keywords: Solar System, exoplanets, protonebula, dust subdisk, planetesimals, planet embryos, protoplanets, catastrophes, planetary migration, rules and laws of evolution, trigger, struggle for resources, primary systems.