15 June 2025
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Latest News
  • [ 9 June 2025 ] Is the Hubble Tension Resolved? News
  • [ 16 May 2025 ] Universe’s end – sooner rather than later News
  • [ 26 March 2025 ] A faint star will reveal itself as it throws a hissy-fit News
  • [ 24 March 2025 ] Saturn’s Rings to “Disappear” News
  • [ 17 March 2025 ] The Lithium Problem News
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Steward Observatory

News

The supernova that wasn’t: a tale of three cosmic eruptions

4 September 2016 Astronomy Now

Combining images taken with the NASA/ESA Hubble Space Telescope over more than 20 years, a team of researchers has discovered that Eta Carinae, a very massive star system that has puzzled astronomers since it erupted in a supernova-like event in the mid-19th century, has a past that’s much more violent than they thought.

News

Mysterious ripples found racing through planet-forming disc

7 October 2015 Astronomy Now

Astronomers using NASA’s Hubble Space Telescope and ESO’s Very Large Telescope in Chile have discovered never-before-seen moving features within the dusty disc surrounding the young, nearby star AU Microscopii. The fast-moving, wave-like structures are moving at 22,000 miles per hour — fast enough to escape the star’s gravitational pull.

News

Construction to begin on world’s largest optical telescope

3 June 2015 Astronomy Now

Collaborators secure more than $500 million for the historic $1 billion project to build the Giant Magellan Telescope — a seven-mirror colossus gathering more than six times the amount of light of the current largest optical telescopes into images up to 10 times sharper than those of the Hubble Space Telescope.

News

Lava lake of Io’s volcano Loki viewed with Large Binocular Telescope

30 April 2015 Astronomy Now

With the first detailed observations through imaging interferometry of a lava lake on Io, Jupiter’s innermost Galilean moon, the Large Binocular Telescope Observatory places itself as the forerunner of the next generation of extremely large telescopes.

News

Universe expanding more slowly than previously thought?

13 April 2015 Astronomy Now

A University of Arizona-led team of astronomers found that the type of supernovae commonly used to measure distances in the universe fall into distinct populations not recognised before. The findings have implications for our understanding of how fast the universe has been expanding since the Big Bang.

News

Space observatories find missing clue to galaxy cluster formation

2 April 2015 Astronomy Now

Astronomers using the Herschel Space Observatory and Plank satellite, plus University of Arizona observatories, discover likely precursors of the galaxy clusters we see today and reveal glimpses into how galaxies like our Milky Way came to be.

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News Headlines

  • 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
  • Big Bang
    The Lithium Problem
    17 March 2025
  • Home
  • The Magazine
    • About
    • Current Issue
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      • July last issue
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  • AstroFest 2025
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    • 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
    • Advertising

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