Fifteen new giant radio galaxies discovered with ASKAP

This article has been reviewed according to Science X's editorial process and policies . Editors have highlighted the following attributes while ensuring the content's credibility: Overview of the ASKAP 944 MHz Sculptor field. Overlaid are enlarged images of the 15 giant radio galaxies in the sample. Credit: arXiv (2025). DOI: 10.48550/arxiv.2504.07314 Using the Australian Square Kilometer Array Pathfinder (ASKAP), astronomers have discovered 15 new giant radio galaxies with physical sizes exceeding 3 million light years. The finding was reported in a research paper published April 9 on the arXiv preprint server. The so-called giant radio galaxies (GRGs) have an overall projected linear length exceeding at least 2.3 million light years. They are rare objects grown usually in low-density environments and display jets and lobes of synchrotron-emitting plasma. GRGs are important for astronomers studying the formation and the evolution of radio sources. ASKAP is a 36-dish radio-interfe ... Read full article.