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  2. Great Debate (astronomy) - Wikipedia

    en.wikipedia.org/wiki/Great_Debate_(astronomy)

    Later in the 1920s, Edwin Hubble showed that Andromeda was far outside the Milky Way by measuring Cepheid variable stars, proving that Curtis was correct. [6] It is now known that the Milky Way is only one of as many as an estimated 200 billion (2 × 10 11) [7] to 2 trillion (2 × 10 12) or more galaxies in the observable Universe.

  3. Edwin Hubble - Wikipedia

    en.wikipedia.org/wiki/Edwin_Hubble

    Orbiting Hubble Space Telescope; Edwin P. Hubble Planetarium, located in the Edward R. Murrow High School, Brooklyn, New York; [58] Edwin Hubble Highway, the stretch of Interstate 44 passing through his birthplace of Marshfield, Missouri; [59] Hubble Middle School, a public school in Wheaton, Illinois, where he lived from 11 years old and up. [60]

  4. Galaxy morphological classification - Wikipedia

    en.wikipedia.org/wiki/Galaxy_morphological...

    Spiral galaxy UGC 12591 is classified as an S0/Sa galaxy. [1]The Hubble sequence is a morphological classification scheme for galaxies invented by Edwin Hubble in 1926. [2] [3] It is often known colloquially as the “Hubble tuning-fork” because of the shape in which it is traditionally represented.

  5. Hubble Space Telescope - Wikipedia

    en.wikipedia.org/wiki/Hubble_Space_Telescope

    The Hubble Space Telescope (HST or Hubble) is a space telescope that was launched into low Earth orbit in 1990 and remains in operation. It was not the first space telescope , but it is one of the largest and most versatile, renowned as a vital research tool and as a public relations boon for astronomy .

  6. Great Observatories program - Wikipedia

    en.wikipedia.org/wiki/Great_Observatories_program

    Studying X-ray and gamma-ray objects with Hubble, as well as Chandra and Compton, gives accurate size and positional data. In particular, Hubble's resolution can often discern whether the target is a standalone object, or part of a parent galaxy, and if a bright object is in the nucleus, arms, or halo of a spiral galaxy. Similarly, the smaller ...

  7. Cosmic Evolution Survey - Wikipedia

    en.wikipedia.org/wiki/Cosmic_Evolution_Survey

    COSMOS's 3-D map of the large-scale distribution of dark matter, reconstructed from measurements of weak gravitational lensing with the Hubble Space Telescope. [1] The Cosmic Evolution Survey (COSMOS) is a Hubble Space Telescope (HST) Treasury Project to survey a two square degree equatorial field with the Advanced Camera for Surveys (ACS). [2]

  8. Great Observatories Origins Deep Survey - Wikipedia

    en.wikipedia.org/wiki/Great_Observatories...

    The Great Observatories Origins Deep Survey, or GOODS, is an astronomical survey combining deep observations from three of NASA's Great Observatories: the Hubble Space Telescope, the Spitzer Space Telescope, and the Chandra X-ray Observatory, along with data from other space-based telescopes, such as XMM Newton, and some of the world's most powerful ground-based telescopes.

  9. Timeline of knowledge about galaxies, clusters of galaxies ...

    en.wikipedia.org/wiki/Timeline_of_knowledge...

    1995 – Hubble Deep Field survey of galaxies in field 144 arc seconds across. 1998 – The 2dF Galaxy Redshift Survey maps the large-scale structure in a section of the Universe close to the Milky Way. 1998 – The Hubble Deep Field South is compiled. 1998 – Discovery of accelerating universe. [13]