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Steady-state model

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The CMB dipole is hinted at through a number of other observations. First, even within the CMB, there are curious directional alignments and an anomalous parity asymmetry that may have an origin in the CMB dipole. Separately, the CMB dipole direction has emerged as a preferred direction in studies
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radiation in 1964, which was predicted by the Big Bang theory. The steady-state model explained microwave background radiation as the result of light from ancient stars that has been scattered by galactic dust. However, the cosmic microwave background level is very even in all directions, making it
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on astronomy), not in closer galaxies. Whereas the Big Bang theory predicted as much, the steady-state model predicted that such objects would be found throughout the universe, including close to our own galaxy. By 1961, statistical tests based on radio-source surveys had ruled out the steady-state
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predicted that the CMB has a significant dipole anisotropy. In recent years the CMB dipole has been tested and current results suggest our motion with respect to distant radio galaxies and quasars differs from our motion with respect to the CMB. The same conclusion has been reached in recent
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even with the limited observational evidence at our disposal. The steady state model is so attractive that many of its adherents still retain hope that the evidence against it will eventually disappear as observations improve. However, if the cosmic microwave radiation ... is really black-body
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Gold and Hoyle (1959) considered that matter that is newly created exists in a region that is denser than the average density of the universe. This matter then may radiate and cool faster than the surrounding regions, resulting in a pressure gradient. This gradient would push matter into an
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difficult to explain how it could be generated by numerous point sources, and the microwave background radiation shows no evidence of characteristics such as polarization that are normally associated with scattering. Furthermore, its spectrum is so close to that of an ideal
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the Chicago astronomer William MacMillan not only assumed that stars and galaxies were distributed uniformly throughout infinite space, he also denied 'that the universe as a whole has ever been or ever will be essentially different from what it is
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has pointed out flaws in the model. These first comments were soon rebutted by the proponents. Wright and other mainstream cosmologists reviewing QSS have pointed out new flaws and discrepancies with observations left unexplained by proponents.
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as a new incarnation of the steady-state ideas meant to explain additional features unaccounted for in the initial proposal. The model suggests pockets of creation occurring over time within the universe, sometimes referred to as
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Migkas, K.; Pacaud, F.; Schellenberger, G.; Erler, J.; Nguyen-Dang, N. T.; Reiprich, T. H.; Ramos-Ceja, M. E.; Lovisari, L. (May 2021). "Cosmological implications of the anisotropy of ten galaxy cluster scaling relations".
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Elcio Abdalla; Guillermo Franco Abellán; et al. (11 Mar 2022), "Cosmology Intertwined: A Review of the Particle Physics, Astrophysics, and Cosmology Associated with the Cosmological Tensions and Anomalies",
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It is now known that Albert Einstein considered a steady-state model of the expanding universe, as indicated in a 1931 manuscript, many years before Hoyle, Bondi and Gold. However, Einstein abandoned the idea.
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Many large-scale structures have been discovered, and some authors have reported some of the structures to be in conflict with the homogeneity condition required for the cosmological principle, including
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From the 1940s to the 1960s, the astrophysical community was divided between supporters of the Big Bang theory and supporters of the steady-state theory. The steady-state model is now rejected by most
961:. The fact that all these independent observables, based on different physics, are tracking the CMB dipole direction suggests that the Universe is anisotropic in the direction of the CMB dipole. 921:(CMB) in two respects: one with respect to average temperature (i.e. temperature fluctuations), the second with respect to larger variations in the degree of perturbations (i.e. densities). The 890:). However, recent findings suggest that violations of the cosmological principle, especially of isotropy, exist, with some authors suggesting that the cosmological principle is now obsolete. 178: 2580:
Migkas, K.; Schellenberger, G.; Reiprich, T. H.; Pacaud, F.; Ramos-Ceja, M. E.; Lovisari, L. (April 2020). "Probing cosmic isotropy with a new X-ray galaxy cluster sample through the
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state that the universe has no beginning or end but the things within go through recycling. The Vedic cause-effect theory states that the effect is caused in a different form.
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Problems with the steady-state model began to emerge in the 1950s and 60s – observations supported the idea that the universe was in fact changing. Bright radio sources (
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Nevertheless, some authors have stated that the universe around Earth is isotropic at high significance by studies of the cosmic microwave background temperature maps.
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Krishnan, Chethan; Mohayaee, Roya; Colgáin, Eoin Ó; Sheikh-Jabbari, M. M.; Yin, Lu (16 September 2021). "Does Hubble Tension Signal a Breakdown in FLRW Cosmology?".
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de Oliveira-Costa, Angelica; Tegmark, Max; Zaldarriaga, Matias; Hamilton, Andrew (25 March 2004). "The significance of the largest scale CMB fluctuations in WMAP".
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and which states that our observational location in the universe is not unusual or special; on a large-enough scale, the universe looks the same in all directions (
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Kim, Jaiseung; Naselsky, Pavel (10 May 2010). "Anomalous parity asymmetry of the Wilkinson Microwave Anisotropy Probe power spectrum data at low multipoles".
619: 844:... In a sense, this disagreement is a credit to the model; alone among all cosmologies, the steady state model makes such definite predictions that it 2977: 821:
that it could hardly be formed by the superposition of contributions from a multitude of dust clumps at different temperatures as well as at different
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over-dense region and result in a thermal instability and emit a large amount of plasma. However, Gould and Burbidge (1963) realized that the thermal
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On the other hand, the steady-state model says while the universe is expanding, it nevertheless does not change its appearance over time (the
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Ryle and Clarke, "An examination of the steady-state model in the light of some recent observations of radio sources," MNRAW 122 (1961) 349
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Luongo, Orlando; Muccino, Marco; Colgáin, Eoin Ó; Sheikh-Jabbari, M. M.; Yin, Lu (2022). "Larger H0 values in the CMB dipole direction".
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Krishnan, Chethan; Mohayaee, Roya; Colgáin, Eoin Ó; Sheikh-Jabbari, M. M.; Yin, Lu (2022). "Hints of FLRW breakdown from supernovae".
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Hutsemekers, D.; Cabanac, R.; Lamy, H.; Sluse, D. (October 2005). "Mapping extreme-scale alignments of quasar polarization vectors".
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Siewert, Thilo M.; Schmidt-Rubart, Matthias; Schwarz, Dominik J. (2021). "Cosmic radio dipole: Estimators and frequency dependence".
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Since this discovery, the Big Bang theory has been considered to provide the best explanation of the origin of the universe. In most
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Hoyle, F.; Burbidge, G.; Narlikar, J. V. (1994). "Further astrophysical quantities expected in a quasi-steady state Universe".
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Secrest, Nathan; von Hausegger, Sebastian; Rameez, Mohamed; Mohayaee, Roya; Sarkar, Subir; Colin, Jacques (25 February 2021).
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Nathan J. Secrest; Sebastian von Hausegger; Mohamed Rameez; Roya Mohayaee; Subir Sarkar; Jacques Colin (February 25, 2021).
1067:; the evaporation of such a particle has been evoked as the source of light elements in an expanding steady-state universe. 2016: 1023:
Other authors claim that the existence of large-scale structures does not necessarily violate the cosmological principle.
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Horvath, I.; Hakkila, J.; Bagoly, Z. (2013). "The largest structure of the Universe, defined by Gamma-Ray Bursts".
1134: 1005:, discovered in 2012, which is three times longer than and twice as wide as is predicted possible according to ΛCDM 347: 327: 135: 80: 3056: 1830: 1802: 1738: 1102: 173: 978: 3634: 744: 342: 107: 2252:"Peculiar motion of Solar system from the Hubble diagram of supernovae Ia and its implications for cosmology" 1829:
Migkas, K.; Schellenberger, G.; Reiprich, T. H.; Pacaud, F.; Ramos-Ceja, M. E.; Lovisari, L. (8 April 2020).
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Narlikar, J. V.; Vishwakarma, R. G.; Burbidge, G. (2002). "Interpretations of the Accelerating Universe".
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radiation, it will be difficult to doubt that the universe has evolved from a hotter denser early stage."
2295:"Solar system peculiar motion from the Hubble diagram of quasars and testing the cosmological principle" 1506: 1052: 922: 887: 515: 317: 259: 856:
publications, the Big Bang is implicitly accepted and is used as the basis of more complete theories.
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Saadeh D, Feeney SM, Pontzen A, Peiris HV, McEwen, JD (2016). "How Isotropic is the Universe?".
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For most cosmologists, the refutation of the steady-state model came with the discovery of the
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Hoyle, F.; Burbidge, G.; Narlikar, J. V. (1994). "Note on a Comment by Edward L. Wright".
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model in the minds of most cosmologists, although some proponents of the astronomers like
717: 713: 682: 520: 455: 440: 425: 410: 400: 264: 2993:"Seeing patterns in noise: gigaparsec-scale 'structures' that do not violate homogeneity" 161: 3352: 3260: 3207: 3149: 3105: 3069: 3018: 2926: 2865: 2812: 2759: 2481: 2420: 2359: 2210: 2061: 1979: 1920: 1700: 1635: 1580: 1414: 1398: 1383: 1367: 1325: 1244: 1203: 3543: 2489: 1271:(2019). "Steady-State theory and the cosmological controversy". In Kragh, Helge (ed.). 950: 934: 914: 899: 845: 797: 779: 505: 465: 1055:, further modifications of the model were made. The Planck particle is a hypothetical 3613: 3370: 3311: 3036: 2828: 2775: 2722: 2660: 2444: 2383: 2236: 2169: 1987: 1938: 1872: 1780: 1716: 1659: 1596: 1130:
Cosmology and Controversy: The Historical Development of Two Theories of the Universe
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Cosmology's century: an inside history of our modern understanding of the universe
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wrote in 1972: "The steady state model does not appear to agree with the observed
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remains unchanged due to a continuous creation of matter, thus adhering to the
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Jacques Colin; Roya Mohayaee; Mohamed Rameez; Subir Sarkar (20 November 2019).
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Burbidge, G., Hoyle, F., "The Origin of Helium and the Other Light Elements",
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B. Javanmardi; C. Porciani; P. Kroupa; J. Pflamm-Altenburg (August 27, 2015).
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of alignments in quasar polarizations, scaling relations in galaxy clusters,
3027: 2992: 2321: 2294: 435: 3215: 2881: 1343: 720:(1917), was unstable. The modern Big Bang theory, first advanced by Father 1954:"Probing the Isotropy of Cosmic Acceleration Traced By Type Ia Supernovae" 3390: 3343: 3251: 2917: 2533: 2411: 2350: 1002: 883: 837: 822: 659: 638: 168: 70: 63: 2978:"Line of galaxies is so big it breaks our understanding of the universe" 3303: 3190:"The basic theory underlying the quasi-steady state cosmological model" 2903:
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Land, Kate; Magueijo, Joao (28 November 2005). "Is the Universe odd?".
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Quasi-steady-state cosmology (QSS) was proposed in 1993 by Fred Hoyle,
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radiation emitted by such a plasma would exceed the amount of observed
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One of the fundamental assumptions of the steady-state model is the
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Cosmological expansion was originally seen through observations by
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This article is about the cosmological theory. For other uses, see
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Hoyle, F. (1993). "Light element synthesis in Planck fireballs".
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he Steady State theorists' ideas are largely discredited today...
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theory. In the steady-state model, the density of matter in the
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Model of the universe – alternative to the Big Bang model
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Publications of the Astronomical Society of the Pacific
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The Oxford handbook of the history of modern cosmology
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in 1948. Similar models had been proposed earlier by
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Conflict in the Cosmos: Fred Hoyle's Life in Science
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Asta Heinesen; Hayley J. Macpherson (15 July 2021).
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suggests that isotropy is violated on large scales.
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(2005). 3353:1995MNRAS.276.1421W 3261:2002PASP..114.1092N 3208:1995RSPSA.448..191H 3150:1994MNRAS.269.1152H 3106:1994MNRAS.267.1007H 3070:1993ApJ...410..437H 3019:2013MNRAS.434..398N 2927:2005ApJ...624..463G 2866:2016PhRvL.117m1302S 2813:2022PhRvD.105j3510L 2760:2022PhRvD.105f3514K 2613:scaling relation". 2482:2010ApJ...714L.265K 2421:2005PhRvD..72j1302L 2360:2004PhRvD..69f3516D 2211:2021ApJ...908L..51S 2062:1967PhRvL..18.1065S 1980:2015ApJ...810...47J 1921:2021ApJ...908L..51S 1808:Scientific American 1701:2021PhRvD.104b3525M 1636:2021CQGra..38r4001K 1581:2022JHEAp..34...49A 1415:1963ApJ...138..969G 1384:1959IAUS....9..583G 1326:2014Natur.506..418C 1245:1948MNRAS.108..372H 1204:1948MNRAS.108..252B 1070:Astrophysicist and 755:Observational tests 691:age of the universe 672:observable universe 656:steady state theory 294:Structure formation 186:Friedmann equations 76:Age of the universe 40:Part of a series on 3620:Physical cosmology 3465:Joseph Henry Press 3304:10.1007/BF00644753 3245:(800): 1092–1096. 2603: 2025:. October 5, 2016 1841:(April 2020): 42. 1065:Compton wavelength 1037:Jayant V. Narlikar 1027:Quasi-steady state 996:large quasar group 939:Type Ia supernovae 908:type Ia supernovae 664:expanding universe 652:steady-state model 644: 333:Dark Energy Survey 277:Large quasar group 46:Physical cosmology 3520:978-0-521-86504-3 3497:978-1-85410-961-3 3474:978-0-309-09313-2 3451:978-0-521-66223-9 2791:Physical Review D 2738:Physical Review D 2594: 2399:Physical Review D 2338:Physical Review D 2056:(24): 1065–1067. 1679:Physical Review D 1526:978-0-691-22771-9 1488:978-0-471-92567-5 1320:(7489): 418–419. 1290:978-0-19-881766-6 1144:978-0-691-02623-7 1033:Geoffrey Burbidge 928:Already in 1967, 840:relation or with 630: 629: 301: 300: 143: 142: 16:(Redirected from 3642: 3602: 3601: 3600: 3590: 3589: 3588: 3578: 3577: 3576: 3566: 3565: 3554: 3553: 3552: 3542: 3541: 3533: 3524: 3501: 3478: 3455: 3415: 3414: 3402: 3396: 3395: 3393: 3391:astro-ph/9412045 3381: 3375: 3374: 3364: 3346: 3344:astro-ph/9410070 3322: 3316: 3315: 3287: 3281: 3280: 3254: 3252:astro-ph/0205064 3234: 3228: 3227: 3185: 3163: 3161: 3127: 3117: 3100:(4): 1007–1019. 3083: 3081: 3047: 3041: 3040: 3030: 3012: 2988: 2982: 2981: 2974: 2968: 2967: 2965: 2953: 2947: 2946: 2920: 2918:astro-ph/0310571 2900: 2894: 2893: 2859: 2839: 2833: 2832: 2806: 2786: 2780: 2779: 2753: 2733: 2727: 2726: 2692: 2671: 2665: 2664: 2630: 2612: 2610: 2609: 2604: 2596: 2595: 2592: 2577: 2571: 2570: 2536: 2534:astro-ph/0507274 2516: 2510: 2509: 2475: 2466:(2): L265–L267. 2455: 2449: 2448: 2414: 2412:astro-ph/0507289 2394: 2388: 2387: 2353: 2351:astro-ph/0307282 2333: 2327: 2326: 2324: 2314: 2305:(2): 1819–1829. 2290: 2284: 2283: 2281: 2271: 2262:(4): 5969–5980. 2247: 2241: 2240: 2222: 2204: 2180: 2174: 2173: 2147: 2127: 2121: 2120: 2118: 2116: 2111: 2087: 2081: 2080: 2078: 2076: 2041: 2035: 2034: 2032: 2030: 2013: 2007: 2006: 2004: 2002: 1973: 1949: 1943: 1942: 1932: 1914: 1890: 1884: 1883: 1881: 1879: 1850: 1826: 1820: 1819: 1817: 1815: 1798: 1792: 1791: 1789: 1787: 1758: 1734: 1728: 1727: 1725: 1723: 1694: 1670: 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834: 827:Steven Weinberg 810: 793: 768: 762: 757: 718:Albert Einstein 714:static universe 699: 683:astrophysicists 626: 588: 586: 568: 567: 554: 551: 544: 542:Subject history 534: 533: 525: 370: 362: 361: 358: 355: 313: 303: 302: 265:Galaxy filament 218: 206: 205: 157: 152:Expansion  145: 144: 129:Microwave (CMB) 108:Nucleosynthesis 92: 35: 28: 23: 22: 15: 12: 11: 5: 3648: 3646: 3638: 3637: 3632: 3627: 3622: 3612: 3611: 3607: 3606: 3594: 3582: 3570: 3558: 3546: 3526: 3525: 3519: 3502: 3496: 3479: 3473: 3456: 3450: 3433: 3422: 3419: 3417: 3416: 3397: 3376: 3317: 3298:(2): 177–193. 3282: 3269:10.1086/342374 3229: 3176:(3): 729–739. 3079:10.1086/172761 3042: 3003:(1): 398–406. 2983: 2969: 2948: 2935:10.1086/428890 2911:(2): 463–484. 2895: 2850:(13): 131302. 2834: 2797:(10): 103510. 2781: 2728: 2666: 2602: 2599: 2590: 2572: 2527:(3): 915–930. 2511: 2450: 2405:(10): 101302. 2389: 2328: 2285: 2242: 2175: 2122: 2102:(2): 377–381. 2082: 2036: 2008: 1944: 1885: 1821: 1793: 1729: 1665: 1620:(18): 184001. 1601: 1545: 1532: 1525: 1494: 1487: 1461: 1454: 1436: 1423:10.1086/147698 1389: 1358: 1349: 1300: 1289: 1260: 1219: 1178: 1150: 1143: 1112: 1110: 1107: 1106: 1105: 1100: 1095: 1090: 1083: 1080: 1028: 1025: 1021: 1020: 1013: 1006: 999: 989: 982: 969: 966: 951:strong lensing 935:Hubble diagram 915:Planck Mission 913:Data from the 898:Evidence from 895: 892: 861: 858: 832: 809: 806: 798:bremsstrahlung 792: 789: 780:speed of light 776:radio galaxies 761: 758: 756: 753: 698: 695: 628: 627: 625: 624: 617: 610: 602: 599: 598: 597: 596: 584: 570: 569: 566: 565: 560: 555: 548: 545: 540: 539: 536: 535: 532: 531: 524: 523: 518: 513: 508: 503: 498: 493: 488: 483: 478: 473: 468: 463: 458: 453: 448: 443: 438: 433: 428: 423: 418: 413: 408: 403: 398: 393: 388: 383: 378: 372: 371: 368: 367: 364: 363: 360: 359: 352: 350: 345: 340: 335: 330: 325: 320: 314: 309: 308: 305: 304: 299: 298: 297: 296: 284: 279: 274: 262: 254: 253: 249: 248: 247: 246: 234: 226: 225: 219: 212: 211: 208: 207: 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905: 901: 893: 891: 889: 885: 881: 877: 871: 867: 859: 857: 855: 854:astrophysical 850: 847: 843: 842:source counts 839: 835: 828: 824: 820: 815: 807: 805: 803: 799: 790: 788: 786: 781: 777: 773: 767: 766:Source counts 759: 754: 752: 748: 746: 742: 738: 734: 733:Hermann Bondi 730: 725: 723: 719: 715: 711: 706: 704: 696: 694: 692: 688: 684: 680: 675: 673: 669: 665: 661: 657: 653: 649: 641: 640: 634: 623: 618: 616: 611: 609: 604: 603: 601: 600: 595: 585: 583: 574: 573: 572: 571: 564: 561: 559: 556: 553: 547: 546: 543: 538: 537: 530: 527: 526: 522: 519: 517: 514: 512: 509: 507: 504: 502: 499: 497: 494: 492: 489: 487: 484: 482: 479: 477: 474: 472: 469: 467: 464: 462: 459: 457: 454: 452: 449: 447: 444: 442: 439: 437: 434: 432: 429: 427: 424: 422: 419: 417: 414: 412: 409: 407: 404: 402: 399: 397: 394: 392: 389: 387: 384: 382: 379: 377: 374: 373: 366: 365: 357: 351: 349: 346: 344: 341: 339: 336: 334: 331: 329: 326: 324: 321: 319: 316: 315: 312: 307: 306: 295: 292: 288: 285: 283: 280: 278: 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Wright 1057:black hole 1042:minibangs, 819:black body 785:Halton Arp 764:See also: 741:Fred Hoyle 391:Copernicus 369:Scientists 224:Components 3630:Cosmogony 3556:Astronomy 3371:118904109 3312:121245869 3037:119220579 3010:1306.1700 2963:1311.1104 2829:248713777 2776:235352881 2723:232352604 2715:0004-6361 2661:215238834 2653:0004-6361 2598:− 2559:0004-6361 2498:2041-8205 2473:1001.4613 2445:119333704 2437:1550-7998 2384:119463060 2376:1550-7998 2237:222066749 2229:2041-8213 2170:223953708 2001:March 24, 1964:(1): 47. 1939:222066749 1873:215238834 1814:March 24, 1781:208175643 1717:232307363 1660:234790314 1652:0264-9381 1597:247411131 1431:0004-637X 1017:Giant Arc 823:redshifts 648:cosmology 521:Zeldovich 421:Friedmann 396:de Sitter 323:BOOMERanG 252:Structure 217:Structure 101:Inflation 3277:15456774 3224:53449963 2882:27715088 2683:: A151. 2567:14626666 2506:24389919 2115:25 March 2075:25 March 1996:54958680 1878:24 March 1786:25 March 1722:25 March 1344:24572403 1127:(1999). 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Index

Steady-state theories
Steady state (disambiguation)
Physical cosmology
Full-sky image derived from nine years' WMAP data
Big Bang
Universe
Age of the universe
Chronology of the universe
Inflation
Nucleosynthesis
Gravitational wave (GWB)
Microwave (CMB)
Neutrino (CNB)
Hubble's law
Redshift
Expansion of the universe
FLRW metric
Friedmann equations
Inhomogeneous cosmology
Future of an expanding universe
Ultimate fate of the universe
Lambda-CDM model
Dark energy
Dark matter
Shape of the universe
Galaxy filament
Galaxy formation
Large quasar group
Large-scale structure
Reionization

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