23 September 2023
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  • [ 11 September 2023 ] The Great Square of Pegasus: heralding autumn News
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  • [ 2 August 2023 ] NASA picks up faint carrier signal from Voyager 2 News
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Picture This

A rung on the cosmic measuring ladder

25 May 2022 Keith Cooper

When measuring the Hubble constant by mapping the properties of the cosmic microwave background radiation to the standard model of cosmology, astronomers get a value of about 69 kilometres per second per megaparsec.

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News Headlines

  • The Great Square of Pegasus: heralding autumn
    11 September 2023
  • New comet predicted to brighten rapidly as it sprints Sunwards
    18 August 2023
  • NASA picks up faint carrier signal from Voyager 2
    2 August 2023
  • Razor-sharp test images show Euclid’s instruments performing as expected
    31 July 2023
  • NASA loses touch with Voyager 2; waits for craft to ‘phone home’
    31 July 2023
  • Home
  • The Magazine
    • About
    • Current Issue
    • Subscribe
    • Renew Subscription
      • September last issue
      • October last issue
      • November last issue
  • AstroFest 2023
  • News
  • Observing
    • UK Sky Chart
    • Almanac
    • Scope Calc
    • DSLR Calc
  • Reviews
    • Equipment
    • Book Reviews
  • Spaceflight Now
  • Shop
  • Contact Us
    • Subscriptions
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    • Ask Astronomy Now
    • Editorial
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