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The molecular cloud is known only

См. также в других словарях:

  • Molecular graphics — (MG) is the discipline and philosophy of studying molecules and their properties through graphical representation.[1] IUPAC limits the definition to representations on a graphical display device .[2] Ever since Dalton s atoms and Kekulé s benzene …   Wikipedia

  • Molecular nanotechnology — Part of a series of articles on Molecular Nanotechnology …   Wikipedia

  • Molecular orbital theory — In chemistry, molecular orbital (MO) theory is a method for determining molecular structure in which electrons are not assigned to individual bonds between atoms, but are treated as moving under the influence of the nuclei in the whole… …   Wikipedia

  • Formation and evolution of the Solar System — Artist s conception of a protoplanetary disk The formation and evolution of the Solar System is estimated to have begun 4.568 billion years ago with the gravitational collapse of a small part of a giant molecular cloud …   Wikipedia

  • History of the Earth — For the history of modern humans, see History of the world. Geological time put in a diagram called a geological clock, showing the relative lengths of the eons of the Earth s history The history of the Earth describes the most important events… …   Wikipedia

  • Oort cloud — An artist s rendering of the Oort cloud and the Kuiper belt (inset). Sizes of individual objects have been exaggerated for visibility …   Wikipedia

  • Native Americans in the United States — This article is about the indigenous people of the United States. For other indigenous people see Indigenous peoples by geographic regions Native Americans …   Wikipedia

  • Abundance of the chemical elements — Estimated proportions of matter, dark matter and dark energy in the universe. Only the fraction of the mass and energy in the universe labeled atoms is composed of chemical elements. The abundance of a chemical element measures how relatively… …   Wikipedia

  • Oort cloud — /awrt, ohrt/, Astron. a region of the solar system far beyond the orbit of Pluto in which billions of comets move in nearly circular orbits unless one is pulled into a highly eccentric elliptical orbit by a passing star. [1975 80; after Dutch… …   Universalium

  • Atomic and molecular astrophysics — Within a few million years the light from bright stars will have boiled away this molecular cloud of gas and dust. The cloud has broken off from the Carina Nebula. Newly formed stars are visible nearby, their images reddened by blue light being… …   Wikipedia

  • Timetable of the Precambrian — This is a timeline of geological and relevant astronomical events on Earth before the Cambrian period started. This covers 88% of the duration of the Earth. The dates given are based on the best current scientific evidence and where possible are… …   Wikipedia

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