This image shows a single part of the complex structure that underpins the whole Universe

This image shows a single part of the complex structure that underpins the whole Universe

"By capturing the faint light emitted by this filament, which travelled for just under 12 billion years to reach Earth, we were able to precisely characterise its shape," explains Davide Tornotti.

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Published: May 9, 2025 at 8:31 am

Want the key facts? Here are the three main takeaways...

  • Astronomers have captured the most detailed image yet of a single filament of gas, part of the vast cosmic web that connects galaxies and forms the underlying structure of the Universe
  • These filaments are composed mainly of gas and dark matter, an invisible substance that makes up about 85% of all mass in the Universe
  • The filaments stretch millions of lightyears, acting as cosmic highways that funnel material between galaxies and fuel their growth
  • Capturing the image of this filament, scientists can now precisely trace the boundary between galactic gas and the cosmic web
  • The study offers new insights into how galaxies form and evolve

Get the full picture

Direct high-definition image showing a single filamentary structure connecting two active galaxies. Credit: Alejandro Benitez-Llambay/Universität Mailand-Bicocca/MPA, Joseph DePasquale/Space Telescope Science Institute
Alejandro Benitez-Llambay/Universität Mailand-Bicocca/MPA, Joseph DePasquale/Space Telescope Science Institute

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