"Groundbreaking: Unveiling Dozens of Massive Radio Galaxies for the FIRST Time"

Astronomers from the University of Wisconsin-Madison have discovered 63 new giant radio galaxies (GRGs) using the Faint Images of the Radio Sky at Twenty cm survey (FIRST). GRGs are rare objects with a projected linear length exceeding 2.3 million light years and are important for studying the formation and evolution of radio sources. The researchers utilized the DRAGNhunter algorithm to identify double-lobed radio galaxies in the FIRST data and found the newfound GRGs at redshifts between 0.51 and 1.32. Further studies are needed to understand the properties of these GRGs.