A view of the center of the Milky Way Galaxy. Depositphotos.

Are Polar Ring Galaxies More Common Than Initially Thought?

Recent findings hint at an uncharted realm of cosmic diversity.


In a groundbreaking discovery, an international team of astronomers, with key contributions from researchers at Queen’s University, have identified two potential polar ring galaxies. These findings, showcased in the Monthly Notices of the Royal Astronomical Society, could rewrite our understanding of these cosmic formations.

The dedicated team analyzed data from the ASKAP radio telescope, a prized asset of Australia’s CSIRO. Surveying hydrogen gas maps of over 600 galaxies, they found two potential candidates for polar ring galaxies – structures characterized by a ring of stars and gas perpendicular to the main galaxy disc. Although not the inaugural discovery of its kind, it’s the first using the advanced ASKAP telescope in Western Australia. These detections hint at the possibility that such galaxies might not be as rare as previously believed.


Deciphering Galactic Evolution

Why does the existence of these galaxies matter? Polar ring structures could unlock the secrets of galaxy evolution. For instance, the origin of polar rings might be traced back to larger galaxies engulfing smaller ones. If these galaxies are more commonplace, it could signify that such cosmic mergers occur more frequently than we thought. Additionally, studying these galaxies further might shine a light on dark matter mysteries, paving the way for innovative dark matter research.


Jayanne English, an expert from the University of Manitoba, combined optical and radio data from various telescopes to produce the first-ever images of these gaseous polar ring galaxies. These images provide valuable insights, blending information beyond human visual capabilities. Collaborating with global experts, the unique hues in the imagery hint at the motion and dance of the gas, offering a vivid portrayal of how galaxies evolve.

Global Collaboration Propels Discovery Forward

This extensive study saw the collaborative efforts of over 25 international experts from diverse corners of the world. The aim now is to bolster these findings with further observations from telescopes around the globe. Dr. Nathan Deg of Queen’s University emphasized the significance of the discovery, indicating that gaseous polar rings might be present in up to 3% of nearby galaxies – a striking difference from earlier estimates.

Dr. Kristine Spekkens lauded the effort, noting the unforeseen delights of the project. On the other hand, Dr. English celebrated the rich data which revealed the mesmerizing movements within the polar ring. Dr. Bärbel Koribalski of CSIRO also underscored the immense potential of ASKAP, suggesting it as a gateway to uncover more dark matter secrets. Echoing this sentiment, Professor Lister Staveley-Smith concluded that these recent findings might just be the beginning of numerous future discoveries.


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Written by Ivan Petricevic

I've been writing passionately about ancient civilizations, history, alien life, and various other subjects for more than eight years. You may have seen me appear on Discovery Channel's What On Earth series, History Channel's Ancient Aliens, and Gaia's Ancient Civilizations among others.

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