A team of international astronomers led by researchers from Leiden University has developed a groundbreaking calibration technique, producing the first sharp radio maps of the universe at low frequencies. The new method bypasses interference from Earth’s ionosphere, allowing for clear images. The LOFAR telescope in the Netherlands was used for the study, revealing new details about galaxy clusters that were previously unseen. This breakthrough could potentially help detect exoplanets orbiting small stars and uncover unexpected phenomena. The research, published in Nature Astronomy, demonstrates the possibilities of studying previously hidden phenomena with radio astronomy.
https://phys.org/news/2024-04-radio-astronomers-bypass-disturbing-earth.html