The observable universe is a ball-shaped region of the universe consisting of all matter that can be observed from Earth or its space-based telescopes... 65 KB (6,725 words) - 16:49, 29 April 2024 |
evidence (WMAP, BOOMERanG, and Planck for example) imply that the observable universe is flat to within a 0.4% margin of error of the curvature density... 30 KB (3,811 words) - 04:37, 15 April 2024 |
and the universe has been expanding ever since. Today the universe has expanded into an age and size that is physically only in parts observable as the... 159 KB (16,649 words) - 16:43, 23 April 2024 |
Big Bang (redirect from Beginnings of the universe) cosmological models of the Big Bang explain the evolution of the observable universe from the earliest known periods through its subsequent large-scale... 148 KB (15,887 words) - 15:08, 27 April 2024 |
Black hole cosmology (redirect from Universe is a black hole) black hole cosmological model) is a cosmological model in which the observable universe is the interior of a black hole. Such models were originally proposed... 6 KB (698 words) - 21:54, 25 April 2024 |
The expansion of the universe is the increase in distance between gravitationally unbound parts of the observable universe with time. It is an intrinsic... 53 KB (6,940 words) - 07:10, 21 April 2024 |
Location of Earth (redirect from Our location in the universe) the Universe, there is no particular reference point with which to plot the overall location of the Earth in the universe. Because the observable universe... 34 KB (1,979 words) - 09:13, 18 April 2024 |
that the observable universe becomes limited to local galaxies. There are various scenarios for the far future and ultimate fate of the universe. More exact... 137 KB (13,917 words) - 21:41, 29 April 2024 |
Observable universe – All of space observable from the Earth at the present Observational cosmology – Study of the origin of the universe (structure and... 33 KB (3,946 words) - 00:59, 15 April 2024 |
In physics, an observable is a physical property or physical quantity that can be measured. In classical mechanics, an observable is a real-valued "function"... 12 KB (1,399 words) - 18:02, 2 April 2024 |
Galaxy (redirect from Island universe) there are between 200 billion (2×1011) to 2 trillion galaxies in the observable universe. Most galaxies are 1,000 to 100,000 parsecs in diameter (approximately... 164 KB (16,377 words) - 17:18, 27 April 2024 |
Outer space (redirect from Space/universe) the universe, but even galaxies and star systems consist almost entirely of empty space. Most of the remaining mass-energy in the observable universe is... 134 KB (13,258 words) - 04:01, 30 April 2024 |
Googolplex (section In the physical universe) space than is available in the known universe. Sagan gave an example that if the entire volume of the observable universe is filled with fine dust particles... 8 KB (854 words) - 10:07, 3 February 2024 |
generation of matter in a young universe. The zero energy solution for Minkowski space representing an observable universe, was provided in 2009. In his... 10 KB (1,412 words) - 17:04, 6 December 2023 |
retrieve information. This observable constraint is due to various properties of general relativity, the expanding universe, and the physics of Big Bang... 10 KB (1,526 words) - 23:37, 21 April 2024 |
Multiverse (redirect from Multiple universes) enhanced. Chary himself is skeptical: Many other regions beyond our observable universe would exist with each such region governed by a different set of... 66 KB (7,373 words) - 18:40, 29 April 2024 |
Inflation (cosmology) (redirect from Inflationary universe) expanding too rapidly. The observable universe is one causal patch of a much larger unobservable universe; other parts of the Universe cannot communicate with... 105 KB (12,825 words) - 20:01, 19 April 2024 |
Nature (redirect from Natural universe) physical objects are composed. It constitutes the observable universe. The visible components of the universe are now believed to compose only 4.9 percent... 85 KB (9,243 words) - 12:22, 15 April 2024 |
light-years away and stretches across roughly a 15th of the radius of the observable universe. It was discovered using data from the Sloan Digital Sky Survey by... 3 KB (318 words) - 00:24, 24 March 2024 |
by Alan Guth. It defines a realm like the one that contains the observable universe as only one of many inflationary zones. Astrophysicist Jean-Luc Lehners... 3 KB (328 words) - 21:37, 27 January 2024 |
Steady-state model (redirect from Steady-state Universe) the perfect cosmological principle, a principle that says that the observable universe is always the same at any time and any place. From the 1940s to the... 30 KB (3,532 words) - 18:05, 16 March 2024 |
assumptions that would be needed for estimates and suggests that the observable universe has more entropy than previously thought. This is because the analysis... 29 KB (3,347 words) - 22:12, 24 April 2024 |
Eddington number (redirect from Number of protons in the universe) astrophysics, the Eddington number, NEdd, is the number of protons in the observable universe. Eddington originally calculated it as about 1.57×1079; current estimates... 7 KB (701 words) - 07:55, 4 January 2024 |
Baryon asymmetry (redirect from Baryon asymmetry of the universe) matter experienced in everyday life) and antibaryonic matter in the observable universe. Neither the standard model of particle physics nor the theory of... 19 KB (2,378 words) - 09:32, 6 April 2024 |
Known Universe or known universe may refer to The entire universe The observable universe, the part of the universe that can be observed from Earth Known... 533 bytes (89 words) - 04:21, 16 March 2021 |
larger observable universe of today were filled with sand, it would still only equal 1095 grains. Another 100,000 observable universes filled with sand... 14 KB (1,447 words) - 19:59, 19 January 2024 |
number of Planck volumes in the observable universe. Thus Graham's number cannot be expressed even by physical universe-scale power towers of the form... 25 KB (3,300 words) - 20:29, 3 April 2024 |
regions of the universe, so its distance at the present epoch defines the size of the observable universe. Due to the expansion of the universe, it is not... 9 KB (1,477 words) - 20:05, 27 February 2024 |