20 July 2025
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Marguerite Pierre

News

Galaxy cluster survey yields 3-D view of universe’s dark side

18 December 2015 Astronomy Now

An international team of astronomers used European Southern Observatory telescopes to complement other earth- and space-based instruments as part of the XXL survey of galaxy clusters. The ESO team measured the precise distances to the galaxy clusters, providing the 3-D view of the cosmos required to perform accurate measurements of dark matter and dark energy.

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News Headlines

  • Stuart Clark and Steven Young shake hands after signing the Astronomy Now contract.
    Astronomy Now under new ownership
    18 July 2025
  • universe
    Is the Hubble Tension Resolved?
    9 June 2025
  • The Universe
    Universe’s end – sooner rather than later
    16 May 2025
  • T Coronae Borealis
    A faint star will reveal itself as it throws a hissy-fit
    26 March 2025
  • Saturn
    Saturn’s Rings to “Disappear”
    24 March 2025
  • Home
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    • Current Issue
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      • September last issue
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  • AstroFest 2026
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    • Almanac
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    • DSLR Calc
  • Reviews
    • Equipment
    • Book Reviews
  • Spaceflight Now
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  • Contact Us
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