Quasars: Cosmic Lighthouses | Golden Age

Quasars, or quasi-stellar radio sources, are incredibly luminous objects that have been observed in the distant universe, with some emitting hundreds of times more energy than the entire Milky Way galaxy. First discovered in 1959 by astronomer Caltech's Maarten Schmidt, quasars are believed to be powered by supermassive black holes residing at the centers of galaxies, with masses millions or even billions of times that of the sun. The study of quasars has been instrumental in understanding the early universe, galaxy evolution, and the growth of supermassive black holes. With a vibe score of 8, quasars continue to fascinate astronomers and the public alike, with ongoing research and new discoveries, such as the detection of quasar feedback, which is thought to regulate star formation in galaxies. The most distant quasar observed to date, ULAS J1342+0928, is seen as it was just 690 million years after the Big Bang, providing a unique window into the universe's formative years. As our understanding of quasars evolves, so too does our appreciation for the complex and dynamic nature of the universe, with quasars playing a key role in shaping our understanding of cosmic evolution.