• In physical cosmology, a protogalaxy, which could also be called a "primeval galaxy", is a cloud of gas which is forming into a galaxy. It is believed...
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  • ProtoGalaxy is a cross-genre video game for Microsoft Windows that was released on October 6, 2010. In the game's back-story, a species of powerful, unknown...
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  • Thumbnail for Astronomical object
    Ring Irregular By size Brightest cluster Giant elliptical Dwarf By type Protogalaxy Starburst Dark Active Radio Seyfert Quasar Microquasar Blazar OVV Red...
    29 KB (1,595 words) - 04:18, 3 May 2025
  • Thumbnail for Dark matter
    to form a dwarf galaxy. This collection of mass is sometimes called a protogalaxy. Dark matter particles are classified as cold, warm, or hot if their...
    138 KB (15,043 words) - 20:34, 19 May 2025
  • Thumbnail for Big Bang
    galaxies in the foreground plane – nearly mature galaxies from 5 to 9 billion years ago – protogalaxies, blazing with young stars, beyond 9 billion years....
    150 KB (16,041 words) - 02:14, 21 May 2025
  • Thumbnail for Galaxy
    halos. These primordial structures allowed gasses to condense in to protogalaxies, large scale gas clouds that were precursors to the first galaxies.: 6 ...
    157 KB (15,794 words) - 21:58, 16 May 2025
  • Wesley; Fryer, Chris L. (August 2013). "The Supernova That Destroyed a Protogalaxy: Prompt Chemical Enrichment and Supermassive Black Hole Growth". The...
    140 KB (9,715 words) - 20:33, 31 March 2025
  • GOODS-N-774 (category Protogalaxies)
    (comoving distance) Apparent magnitude (V) 29.6U Characteristics Type Protogalaxy Mass 1×1011 M☉ Size 1.8 kpc (5.9 kly) Other designations Sparky, GOODS-N-774...
    6 KB (498 words) - 10:19, 15 July 2024
  • "A high-redshift IRAS galaxy with huge luminosity—hidden quasar or protogalaxy?". Nature. 351 (6329): 719–721. Bibcode:1991Natur.351..719R. doi:10.1038/351719a0...
    21 KB (2,217 words) - 18:12, 18 December 2024
  • Thumbnail for Blueberry galaxy
    galaxy Halo corona Galactic plane Galactic ridge Interstellar medium Protogalaxy Galaxy filament Spiral arm Supermassive black hole Ultramassive Active...
    38 KB (4,476 words) - 15:32, 20 May 2025
  • galaxy Halo corona Galactic plane Galactic ridge Interstellar medium Protogalaxy Galaxy filament Spiral arm Supermassive black hole Ultramassive Active...
    2 KB (190 words) - 17:37, 17 July 2024
  • Thumbnail for Interacting galaxy
    galaxy Halo corona Galactic plane Galactic ridge Interstellar medium Protogalaxy Galaxy filament Spiral arm Supermassive black hole Ultramassive Active...
    13 KB (1,149 words) - 06:44, 17 May 2025
  • Thumbnail for Cosmic microwave background
    Robert (December 1967). "Thermal Cosmic Radiation and the Formation of Protogalaxies". Proceedings of the National Academy of Sciences. 58 (6): 2179–2186...
    108 KB (13,196 words) - 18:44, 19 May 2025
  • Thumbnail for Wide Field Infrared Explorer
    and 9-15 μm, specifically focusing on starburst galaxies and luminous protogalaxies. WIRE had problems and was unable to carry out its IR survey, and was...
    11 KB (1,114 words) - 22:44, 28 July 2024
  • Thumbnail for Timeline of the universe
    forms. 300 million years: First large-scale astronomical objects, protogalaxies and quasars may have begun forming. As Population III stars continue...
    17 KB (2,026 words) - 12:56, 30 April 2025
  • Comic Jumper: The Adventures of Captain Smiley XBLA Cut the Rope iOS ProtoGalaxy Win October 7 Sonic the Hedgehog 4: Episode 1 iOS Kingdom Hearts Re:coded...
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  • Thumbnail for Satellite galaxy
    galaxy Halo corona Galactic plane Galactic ridge Interstellar medium Protogalaxy Galaxy filament Spiral arm Supermassive black hole Ultramassive Active...
    32 KB (4,485 words) - 22:21, 15 March 2025
  • Thumbnail for List of the most distant astronomical objects
    UDFy-33436598 zp≅8.6 13.317 Candidate galaxy or protogalaxy UDFy-38135539 zp≅8.6 13.317 Candidate galaxy or protogalaxy A spectroscopic redshift of z = 8.55 was...
    148 KB (9,016 words) - 08:13, 21 May 2025
  • Thumbnail for Hubble Ultra-Deep Field
    foreground plane, nearly mature galaxies from 5 to 9 billion years ago, and protogalaxies beyond 9 billion years. Video (02:42) about how the Hubble eXtreme Deep...
    20 KB (2,186 words) - 04:15, 20 May 2025
  • galaxy Halo corona Galactic plane Galactic ridge Interstellar medium Protogalaxy Galaxy filament Spiral arm Supermassive black hole Ultramassive Active...
    1 KB (123 words) - 22:34, 16 July 2022
  • Lyman-alpha blob (a massive concentration of hydrogen gas believed to be a protogalaxy) that was discovered in 2009. Massing close to 40 billion suns and located...
    50 KB (6,061 words) - 18:39, 9 March 2025
  • Thumbnail for M–sigma relation
    mechanical energy into the infalling gas was large enough to unbind the protogalaxy in one crossing time. The Silk and Rees model predicts a slope for the...
    13 KB (1,608 words) - 08:22, 20 May 2025
  • Thumbnail for Himiko (Lyman-alpha blob)
    miles (122×1021 kilometers). This nebular gas cloud is thought to be a protogalaxy, caught in the act of formation. There have been no spectroscopic signatures...
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  • Thumbnail for ULAS J1120+0641
    embedded in a protogalaxy in the midst of forming, and possibly creating the first Population III stars for the galaxy, or a pre-protogalaxy core still embedded...
    12 KB (1,301 words) - 20:58, 2 March 2025
  • Thumbnail for Galaxy group
    They are the smaller form of protoclusters. These contain galaxies and protogalaxies embedded in dark matter haloes that are in the process of fusing into...
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  • Thumbnail for Fornax
    about 120 light-years (37 pc) across. ` UDFj-39546284 is a candidate protogalaxy located in Fornax, although recent analyses have suggested it is likely...
    35 KB (4,062 words) - 09:09, 18 May 2025
  • galaxy Halo corona Galactic plane Galactic ridge Interstellar medium Protogalaxy Galaxy filament Spiral arm Supermassive black hole Ultramassive Active...
    3 KB (297 words) - 22:51, 14 September 2024
  • Thumbnail for Accretion (astrophysics)
    enough kinetic energy, and dark matter coalesced sufficiently, to form protogalaxies. As further accretion occurred, galaxies formed. Indirect evidence is...
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  • galaxy Halo corona Galactic plane Galactic ridge Interstellar medium Protogalaxy Galaxy filament Spiral arm Supermassive black hole Ultramassive Active...
    2 KB (183 words) - 14:50, 7 May 2024
  • Thumbnail for Ooty Radio Telescope
    astrophysical phenomena such as pulsars, solar wind, recombination lines, and protogalaxies. As of 2017[update], the ORT is undergoing a major upgrade to its receiver...
    18 KB (1,927 words) - 03:26, 9 March 2025