The HERA array in 2022 (IMAGE) University of California - Berkeley Caption The Hydrogen Epoch of Reionization Array (HERA) consists of 350 dishes pointed upward to detect 21-centimeter emissions from the early universe. It is located in a radio-quiet region of the arid Karoo in South Africa. Credit Dara Storer Usage Restrictions none License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.