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The Solar System is believed to have formed according to the nebular hypothesis, first proposed in 1755 by Immanuel Kant and independently formulated by Pierre-Simon Laplace. [2] This theory holds that 4.6 billion years ago the Solar System formed from the gravitational collapse of a giant molecular cloud. This initial cloud was likely several ...
As of 2022, the precise location of the Solar System in the clouds is an open question in astronomy. [259] Within 10 light-years of the Sun there are relatively few stars, the closest being the triple star system Alpha Centauri, which is about 4.4 light-years away and may be in the Local Bubble's G-Cloud. [260]
The different collectives of the geosphere are able to exchange different mass and/or energy fluxes (the measurable amount of change). The exchange of these fluxes affects the balance of the different spheres of the geosphere. An example is how the soil acts as a part of the biosphere, [2] while also acting as a source of flux exchange.
Solar System – the Sun and the objects that orbit it, including eight planets, the third planet closest to the Sun being Earth Earth's orbit – path through which the Earth travels around the Sun. The average distance between the Earth and the Sun is 149.60 million kilometers (92.96 million miles). [1]
Orbit of the Solar System: 17,200 pc 5.31×10 17: The average diameter of the orbit of the Solar System relative to the Galactic Center. The Sun's orbital radius is roughly 8,600 parsecs, or slightly over halfway to the galactic edge. One orbital period of the Solar System lasts between 225 and 250 million years. [34] [35] Milky Way Galaxy ...
Earth scientists often conduct sophisticated computer analysis or visit an interesting location to study earth phenomena (e.g. Antarctica or hot spot island chains). A foundational idea in Earth science is the notion of uniformitarianism , which states that "ancient geologic features are interpreted by understanding active processes that are ...
Jupiter is the biggest planet in our solar system, according to NASA. Jupiter’s radius is over 11 times the equatorial radius of the Earth.
Geology of solar terrestrial planets; Planetary nomenclature; Planetary geology; List of extraterrestrial dune fields; List of tallest mountains in the Solar System; List of craters in the Solar System; List of largest craters in the Solar System; List of largest rifts, canyons and valleys in the Solar System