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Construction starts in Australia on the world's largest radio telescope

   The Square Kilometer Array will help study dark energy and the early
   universe.
   Jon Fingas
   [114]J. Fingas|12.05.22
   [115]@jonfingas

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   Jon Fingas
   [116]J. Fingas
   [117]@jonfingas
   December 5, 2022 4:05 PM
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   In this article: [118]astronomy, [119]news, [120]dark energy,
   [121]astrophysics, [122]space, [123]Square Kilometer Array,
   [124]tomorrow, [125]science
   Square Kilometer Array (SKA-Low) radio telescope artist's impression
   Artist's depiction of the SKA-Low radio telescope's antenna
   'trees.' Australia Department of Industry, Science and Resources

   Astronomers are now closer to a major technological upgrade. Australia
   has [126]started construction of its portion of the Square Kilometer
   Array, a system that should become the world's largest radio telescope.
   The Australian portion, SKA-Low, will revolve around 131,072 antenna
   "trees" in the country's western Wajarri country. As the name implies,
   the array will focus on low-frequency signals. The Guardian [127]notes
   it's expected to be eight times more sensitive than existing
   telescopes, and map the cosmos about 135 times faster.

   A counterpart with 197 conventional radio dishes, SKA-Mid, is coming to
   Meerkat National Park in South Africa's dry, unpopulated Karoo region.
   That element will study mid-range frequencies. The Australian segment
   is a joint effort between the dedicated SKA Organization and the
   country's Commonwealth Scientific and Industrial Research Organization
   (CSIRO).

   IFRAME: [128]https://www.youtube.com/embed/TTeLNC8DXKQ?rel=0

   The combined array, originally envisioned in 1991, is expected to
   transform radio astronomy. It will mainly be helpful for studying
   [129]the early universe, and might provide new insights into the
   formation of the first stars during the reionization period. However,
   it should also help investigate [130]dark energy and its potential
   effect on cosmic expansion. The extreme sensitivity may even be useful
   in the [131]search for extraterrestrial life, although the resolution
   will limit the most detailed searches to relatively close stars.
   Director Dr. Sarah Pierce told The Guardian the telescopes could spot
   an airport radar on a planet "tens of light-years away."

   Work on the Square Kilometer Array isn't expected to finish until 2028,
   and it will take some time after that for scientists to collect and
   decipher results. As with the [132]James Webb Space Telescope, though,
   the lengthy wait is expected to pay dividends. This is a generational
   shift that could provide new insights into the universe, not just more
   detail -- Pearce expects SKA to shape the "next fifty years" of radio
   astronomy.
   All products recommended by Engadget are selected by our editorial
   team, independent of our parent company. Some of our stories include
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   may earn an affiliate commission. All prices are correct at the time of
   publishing.
   View All Comments
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   Construction starts in Australia on the world's largest radio telescope
   [133]astronomy
   [134]news
   [135]dark energy
   [136]astrophysics
   [137]space
   [138]Square Kilometer Array
   [139]tomorrow
   [140]science

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