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  2. Robert Williams (astronomer) - Wikipedia

    en.wikipedia.org/wiki/Robert_Williams_(astronomer)

    Robert Eugene Williams (October 14, 1940) [1] is an American astronomer who served as the director of the Space Telescope Science Institute (STScI) from 1993 to 1998, [2] and the president of the International Astronomical Union (IAU) from 2009 to 2012.

  3. Hubble Deep Field - Wikipedia

    en.wikipedia.org/wiki/Hubble_Deep_Field

    The Hubble Deep Field (HDF) is an image of a small region in the constellation Ursa Major, constructed from a series of observations by the Hubble Space Telescope. It covers an area about 2.6 arcminutes on a side, about one 24-millionth of the whole sky, which is equivalent in angular size to a tennis ball at a distance of 100 metres. [ 1 ]

  4. Hubble Deep Field South - Wikipedia

    en.wikipedia.org/wiki/Hubble_Deep_Field_South

    The Hubble Deep Field South is a composite of several hundred individual images taken using the Hubble Space Telescope's Wide Field and Planetary Camera 2 over 10 days in September and October 1998. It followed the great success of the original Hubble Deep Field in facilitating the study of extremely distant galaxies in early stages of their ...

  5. 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.

  6. Z 229-15 - Wikipedia

    en.wikipedia.org/wiki/Z_229-15

    Z 229-15 is a ring galaxy in the constellation Lyra. [1] It is around 390 million light-years from Earth.It has been referred to by NASA and other space agencies as hosting an active galactic nucleus, a quasar, and a Seyfert galaxy, each of which overlap in some way.

  7. Hubble Space Telescope - Wikipedia

    en.wikipedia.org/wiki/Hubble_Space_Telescope

    Hubble was launched in 1990, but its main mirror had been ground incorrectly, resulting in spherical aberration that compromised the telescope's capabilities. The optics were corrected to their intended quality by a servicing mission in 1993. Hubble is the only telescope designed to be maintained in space by astronauts.

  8. File:Astronomer Robert Williams, 1986.jpg - Wikipedia

    en.wikipedia.org/wiki/File:Astronomer_Robert...

    This media was created by the National Optical-Infrared Astronomy Research Laboratory (NOIRLab). Their website states: "Unless specifically noted, the images, videos, and music distributed on the public NOIRLab website, along with the texts of press releases, announcements, images of the week and captions; are licensed under a Creative Commons Attribution 4.0 International License, and may on ...

  9. SMACS 0723 - Wikipedia

    en.wikipedia.org/wiki/SMACS_0723

    SMACS J0723.3–7327, commonly referred to as SMACS 0723, is a galaxy cluster about 4 billion light years from Earth, [2] within the southern constellation of Volans (RA/Dec = 110.8375, −73.4391667).