1. The Steady-State Theory of the Expanding Universe | First edition
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London: Monthly Notices of the Royal Astronomical Society, 1948. First edition, the extremely rare offprint, of the first published paper to propound the ‘steady-state’ model of the universe, according to which the universe is expanding but unchanging, with no beginning or end, and in which matter is continually being created throughout space so that its average density remains constant. Bondi and Gold’s Cambridge
2. The state of the Universe | Nature
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The past 20 years have seen dramatic advances in cosmology, mostly driven by observations from new telescopes and detectors. These instruments have allowed astronomers to map out the large-scale structure of the Universe and probe the very early stages of its evolution. We seem to have established the basic parameters describing the behaviour of our expanding Universe, thereby putting cosmology on a firm empirical footing. But the emerging ‘standard’ model leaves many details of galaxy formation still to be worked out, and new ideas are emerging that challenge the theoretical framework on which the structure of the Big Bang is based. There is still a great deal left to explore in cosmology.
3. Steady-State Theory of the Expanding Universe - Oxford Academic
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4. Passport to the Universe - The State Museum of Pennsylvania
Passport to the Universe. 20 Minutes. This exhilarating flight through a precise, virtual re-creation of our universe is an astounding visual adventure through ...
5. [2308.00371] Cosmic time and the initial state of the universe - arXiv
Aug 1, 2023 · The exact solution of the Hamiltonian constraint in canonical gravity and the resultant reduction of Einstein's theory reveal the synergy between gravitation ...
The exact solution of the Hamiltonian constraint in canonical gravity and the resultant reduction of Einstein's theory reveal the synergy between gravitation and the intrinsic cosmic clock of our expanding universe. Intrinsic Time Geometrodynamics advocates a paradigm shift from four covariances to just spatial diffeomorphism invariance. Consequently, causal time-ordering and quantum Schrodinger-Heisenberg evolution in cosmic time become meaningful. The natural addition of a Cotton-York term to the physical Hamiltonian changes the initial data problem radically. In the classical context, this is studied with the Lichnerowicz-York equation; quantum mechanically, it lends weight to the origin of the universe as an exact Chern-Simons Hartle-Hawking state, which features Euclidean-Lorentzian instanton tunneling. At the level of expectation values, this quantum state yields a low-entropy hot smooth Robertson-Walker beginning in accord with Penrose's Weyl Curvature Hypothesis. The Chern-Simons Hartle-Hawking state also manifests transverse traceless quantum metric fluctuations, with, at the lowest approximation, scale-invariant two-point correlations as one of its defining characteristics.
6. Astronomy 2143 - Cosmology: The History of the Universe
We now know that the universe we see today has expanded from an extremely hot, extremely dense state - the ``Big Bang'' - that existed about 14 billion years ...
Why is there something, rather than nothing? What was the Big Bang? How fast is the universe expanding? How will the universe end?
7. Steady-state theory | Definition & Facts | Britannica
Steady-state theory, in cosmology, a view that the universe is always expanding but maintaining a constant average density, with matter being continuously ...
Steady-state theory, in cosmology, a view that the universe is always expanding but maintaining a constant average density, with matter being continuously created to form new stars and galaxies at the same rate that old ones become unobservable as a consequence of their increasing distance and velocity of recession.
8. Scholarship Universe
... State University and Kendall College of Art and Design students. The ScholarshipUniverse - Ferris State Scholarships link requires Ferris360 access. When ...
Scholarship Universe is an online scholarship application system that allows students to apply for scholarship opportunities that are awarded by Ferris State University.
9. 12 Monkeys, Hartle-Hawking state, and the Fate of the Universe
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Learn about the Hartle-Hawking state and the Fate of the Universe, all in one post.
10. The 'Horizon' of the Steady-State Universe | Nature
The oldest condensation within the observable universe … has an age of about 1.5 × 1010 years”. If a nebula passes out of the observable universe there must ...
MB. GOLD'S statement is very clear, and those interested in cosmology will be very grateful to him for making it. Unfortunately, however, it only increases the uncertainty which has arisen regarding the actual implications of the theory with respect to the observable horizon, since it appears to be in direct conflict with statements made in the paper by Hoyle which Mr. Gold now cites as one of “the original papers on the subject”. In that paper Hoyle says : “Extragalactic nebulæ are continually passing out of the observable universe … The oldest condensation within the observable universe … has an age of about 1.5 × 1010 years”. If a nebula passes out of the observable universe there must have been a time when it was within it (that is, was observable), and a later time when it was not observable. Hence there must have been a time when it ceased to be observable. But Mr. Gold now says : “Is there a last moment for the reception of light signals from another galaxy ? No. There is no last moment of reception defined in the theory”.
11. Invisible Universe and the Future State of Video | by Doug Shapiro
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What Business Model Emerges from the Video Wreckage?
12. Tiny bright objects discovered at dawn of universe baffle scientists
Jun 27, 2024 · An international team, led by Penn State researchers, using the NIRSpec instrument aboard JWST as part of the RUBIES survey identified three ...
A recent discovery by NASA’s James Webb Space Telescope (JWST) confirmed that luminous, very red objects previously detected in the early universe upend conventional thinking about the origins and evolution of galaxies and their supermassive black holes. An international team, led by Penn State researchers, using the NIRSpec instrument aboard JWST as part of the RUBIES survey identified three mysterious objects in the early universe, about 600-800 million years after the Big Bang, when the universe was only 5% of its current age.
13. Ask Dr. Universe | Washington State University
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Kids can ask questions and explore Science, Technology, Engineering, and Math (STEM) with Dr. Universe and friends at Washington State University.