• A dark galaxy is a hypothesized galaxy with no (or very few) stars. They received their name because they have no visible stars but may be detectable if...
    20 KB (2,147 words) - 06:23, 9 October 2024
  • Thumbnail for Dark matter
    gravitational matter present was dark. Further indications of mass-to-light ratio anomalies came from measurements of galaxy rotation curves. In 1939, H.W...
    134 KB (14,623 words) - 16:47, 11 October 2024
  • Thumbnail for Galaxy
    A galaxy is a system of stars, stellar remnants, interstellar gas, dust, and dark matter bound together by gravity. The word is derived from the Greek...
    159 KB (15,968 words) - 15:08, 3 October 2024
  • Thumbnail for Dark matter halo
    models, such as ΛCDM, propose that dark matter halos and subhalos may contain galaxies. The dark matter halo of a galaxy envelops the galactic disc and extends...
    22 KB (2,834 words) - 19:15, 17 July 2024
  • Thumbnail for Guardians of the Galaxy – Mission: Breakout!
    Guardians of the Galaxy – Mission: Breakout! is an accelerated drop tower dark ride attraction at the Disney California Adventure park at the Disneyland...
    35 KB (3,136 words) - 19:57, 3 October 2024
  • Thumbnail for Galaxy rotation curve
    a galaxy. Theories involving dark matter are the main postulated solutions to account for the variance. The rotational/orbital speeds of galaxies/stars...
    34 KB (4,240 words) - 21:19, 12 October 2024
  • Thumbnail for Galaxy cluster
    A galaxy cluster, or a cluster of galaxies, is a structure that consists of anywhere from hundreds to thousands of galaxies that are bound together by...
    19 KB (1,647 words) - 07:37, 3 July 2024
  • Thumbnail for Galaxy formation and evolution
    allows galaxies to accumulate mass, determining both their shape and structure. Hydrodynamics simulation, which simulates both baryons and dark matter...
    45 KB (5,574 words) - 16:36, 27 September 2024
  • Galaxy X is a postulated dark satellite dwarf galaxy of the Milky Way Galaxy. If it exists, it would be composed mostly of dark matter and interstellar...
    8 KB (665 words) - 00:11, 15 September 2024
  • Thumbnail for Satellite galaxy
    satellite galaxy is a smaller companion galaxy that travels on bound orbits within the gravitational potential of a more massive and luminous host galaxy (also...
    32 KB (4,490 words) - 12:49, 4 October 2024
  • Thumbnail for Ultra diffuse galaxy
    An ultra diffuse galaxy (UDG), or Dark galaxy, is an extremely low luminosity galaxy, the first example of which was discovered in the nearby Virgo Cluster...
    14 KB (1,581 words) - 06:46, 9 October 2024
  • Thumbnail for Milky Way
    Milky Way (redirect from Milky Way galaxy)
    The Milky Way is the galaxy that includes the Solar System, with the name describing the galaxy's appearance from Earth: a hazy band of light seen in the...
    216 KB (21,677 words) - 04:09, 13 October 2024
  • Thumbnail for Andromeda Galaxy
    The Andromeda Galaxy is a barred spiral galaxy and is the nearest major galaxy to the Milky Way. It was originally named the Andromeda Nebula and is cataloged...
    110 KB (10,778 words) - 06:56, 14 October 2024
  • Thumbnail for Dwarf galaxy problem
    normal-sized galaxies to match the simulated distribution of dark matter halos of comparable mass, the number of observed dwarf galaxies is orders of...
    5 KB (583 words) - 00:13, 24 April 2024
  • Thumbnail for Triangulum Galaxy
    The Triangulum Galaxy is a spiral galaxy 2.73 million light-years (ly) from Earth in the constellation Triangulum. It is catalogued as Messier 33 or NGC...
    48 KB (5,095 words) - 00:55, 26 September 2024
  • following is a list of notable galaxies. There are about 51 galaxies in the Local Group (see list of nearest galaxies for a complete list), on the order...
    120 KB (6,315 words) - 06:58, 15 October 2024
  • Thumbnail for Low surface brightness galaxy
    as non-baryonic dark matter. There appears to be little supernova (SN) activity in these galaxies,[citation needed] although LSB galaxy IC 217 hosted 2014cl...
    7 KB (783 words) - 01:02, 21 September 2024
  • Thumbnail for Galaxy groups and clusters
    structure with cold dark matter, the smallest structures collapse first and eventually build the largest structures, clusters of galaxies. Clusters are then...
    13 KB (1,471 words) - 22:25, 17 July 2024
  • Thumbnail for Dark energy
    within galaxies. However, it dominates the universe's mass–energy content because it is uniform across space. The first observational evidence for dark energy's...
    86 KB (9,657 words) - 17:38, 17 September 2024
  • Thumbnail for Dwarf galaxy
    galaxies, including dwarf galaxies, form in association with dark matter, or from gas that contains metals. However, NASA's Galaxy Evolution Explorer space...
    25 KB (2,420 words) - 06:14, 11 October 2024
  • what is observed in galaxies by investigating their rotation curves. Cold dark matter simulations predict large numbers of small dark matter halos, more...
    22 KB (2,544 words) - 13:26, 26 September 2024
  • VIRGOHI21 (category Dark galaxies)
    of dark matter, as much as a small galaxy. Since VIRGOHI21 apparently contains no stars, this would make it one of the first detected dark galaxies. Skeptics...
    10 KB (1,138 words) - 20:02, 29 July 2024
  • Guardians of the Galaxy (retroactively referred to as Guardians of the Galaxy Vol. 1) is a 2014 American superhero film based on the Marvel Comics superhero...
    234 KB (19,817 words) - 01:13, 29 September 2024
  • Thumbnail for Samsung Galaxy S series
    interface, and the brushed dark blue colour variant ("Pebble Blue"), both known from the Galaxy S III. The Samsung Galaxy S III was announced on May 3...
    83 KB (8,893 words) - 09:52, 12 October 2024
  • Thumbnail for Messier 99
    Messier 99 (redirect from Spiral Galaxy M99)
    region and a possible dark galaxy. The gravity from the latter may have distorted M99 and drawn out the gas bridge, as the two galaxy-sized objects may have...
    11 KB (919 words) - 13:08, 9 March 2024
  • Thumbnail for Void (astronomy)
    known as dark space) are vast spaces between filaments (the largest-scale structures in the universe), which contain very few or no galaxies. In spite...
    37 KB (4,466 words) - 13:03, 13 October 2024
  • Thumbnail for Samsung Galaxy A14
    The Samsung Galaxy A14 is an Android smartphone designed and manufactured by Samsung Electronics. The 5G model was announced on January 4, 2023, and the...
    10 KB (723 words) - 12:14, 22 September 2024
  • Thumbnail for Sombrero Galaxy
    The Sombrero Galaxy (also known as Messier Object 104, M104 or NGC 4594) is a peculiar galaxy of unclear classification in the constellation borders of...
    29 KB (3,060 words) - 18:46, 3 October 2024
  • Thumbnail for Whirlpool Galaxy
    The Whirlpool Galaxy, also known as Messier 51a (M51a) or NGC 5194, is an interacting grand-design spiral galaxy with a Seyfert 2 active galactic nucleus...
    30 KB (3,035 words) - 18:50, 13 October 2024
  • clues about how galaxies grew into their current forms over long stretches of time. During the merger, stars and dark matter in each galaxy become affected...
    24 KB (2,573 words) - 11:59, 14 September 2024