As this rotating disc span around the Sun, it began to cool and form different types of solid material.

Formation of the Solar System after gas and dust accretion to a protoplanetary disk. The vast majority of this material was created from the primal supernova If it occurred, this period of heavy bombardment lasted several hundred million years and is evident in the cratering still visible on geologically dead bodies of the inner Solar System such as the Moon and Mercury. [2] [77] The oldest known evidence for life on Earth dates to 3.8billion years ago—almost immediately after the end of the Late Heavy Bombardment. [78] Related: 15 stunning places on Earth that look like they're from another planet Types of planets in the solar system The Solar System is chaotic over million- and billion-year timescales, [99] with the orbits of the planets open to long-term variations. One notable example of this chaos is the Neptune–Pluto system, which lies in a 3:2 orbital resonance. Although the resonance itself will remain stable, it becomes impossible to predict the position of Pluto with any degree of accuracy more than 10–20million years (the Lyapunov time) into the future. [100] Another example is Earth's axial tilt, which, due to friction raised within Earth's mantle by tidal interactions with the Moon ( see below), is incomputable from some point between 1.5 and 4.5 billion years from now. [101]In contrast to the outer planets, the inner planets are not thought to have migrated significantly over the age of the Solar System, because their orbits have remained stable following the period of giant impacts. [35] This is still 10–20 times more than the current mass in the main belt, which is now about 0.0005 M Earth. [59] A secondary depletion period that brought the asteroid belt down close to its present mass is thought to have followed when Jupiter and Saturn entered a temporary 2:1 orbital resonance (see below). There's always death to look forward to: Nihilist Arby's and the cheerful nihilism of the Internet", The Awl, August 2, 2017.

About 99.9% of the material fell into the middle of the cloud and became the Sun. Once the centre became hot and dense enough it triggered nuclear fusion. Then visible light flooded the solar system for the first time. As the early Solar System continued to evolve, it eventually drifted away from its siblings in the stellar nursery, and continued orbiting the Milky Way's center on its own. The Sun likely drifted from its original orbital distance from the center of the galaxy. The chemical history of the Sun suggests it may have formed as much as 3kpc closer to the galaxy core. [31] Solar system birth environment [ edit ] See the entry "Biomedia" in Critical Terms for Media Studies, eds. W.J.T. Mitchell & Mark Hansen (University of Chicago Press, 2010). The sun accumulated about 99% of the available matter and the remaining material further from the sun formed smaller clumps inside the spinning disk. Some of these clumps gained enough mass that their gravity shaped them into spheres, becoming planets, dwarf planets and moons. Other leftover pieces became asteroids, comets and smaller moons that make up our solar system. Leper Creativity: The Cyclonopedia Symposium, co-edited with Ed Keller and Nicola Masciandaro. Punctum Books, 2012. ISBN 978-0615600468.Uranus holds the record for the coldest temperature ever measured in the solar system — minus 371.56 degrees F (minus 224.2 degrees C). The average temperature of Uranus is minus 320 degrees Fahrenheit (-195 degrees Celsius). The outer planets' orbits are chaotic over longer timescales, with a Lyapunov time in the range of 2–230million years. [102]

The Patron Saints of Pessimism - A Writer's Pantheon, excerpt from Infinite Resignation @ LitHub (2018) The Earth's Moon is thought to have formed as a result of a single, large head-on collision. [91] [92] Main article: History of Solar System formation and evolution hypotheses Pierre-Simon Laplace, one of the originators of the nebular hypothesis Pessimism, Futility, and Extinction" Theory, Culture & Society interview with Thomas Dekeyser (17 March 2020). After between three and ten million years, [35] the young Sun's solar wind would have cleared away all the gas and dust in the protoplanetary disc, blowing it into interstellar space, thus ending the growth of the planets. [46] [47] Subsequent evolution [ edit ]

Customer reviews

An Ideal for Living: An Anti-Novel (20th Anniversary Edition). Schism Press, 2020. ISBN 979-8682903832. Because they didn't melt, they’re pristine samples of the original solids that formed in the cooling protoplanetary disc. For scientists they’re some of the most valuable leftover materials we have. The evolution of moon systems is driven by tidal forces. A moon will raise a tidal bulge in the object it orbits (the primary) due to the differential gravitational force across diameter of the primary. If a moon is revolving in the same direction as the planet's rotation and the planet is rotating faster than the orbital period of the moon, the bulge will constantly be pulled ahead of the moon. In this situation, angular momentum is transferred from the rotation of the primary to the revolution of the satellite. The moon gains energy and gradually spirals outward, while the primary rotates more slowly over time. For millennia, astronomers have followed points of light that seemed to move among the stars. The ancient Greeks named them planets, meaning "wanderers." Mercury, Venus, Mars, Jupiter and Saturn were known in antiquity, and the invention of the telescope added the Asteroid Belt, Uranus, Neptune, Pluto and many of these worlds' moons. The dawn of the space age saw dozens of probes launched to explore our system, an adventure that continues today. Networks, Swarms, Multitudes" Part 1, Part 2, Ctheory (2004), "Biophilosophy for the 21st Century", Ctheory (2005).