The Hydrogen Epoch of Reionization Array (HERA) is a project in the Karoo Radio Reserve of South Africa, built in a collaboration between the US National Science Foundation (led by PI Aaron Parsons at UC Berkeley) the ZA National Research Foundation, and the South African Radio Astronomy Observatory (SARAO).

The project website contains links to memos, publications, our photo album, and more!

News

• 11/30/25 Our latest paper just posted on arxiv! These are early results from our 6th season (2022-23), with two weeks of data from ~138 antennas, representing only 10% of the sensitivity we expect to be able to deliver after processing more data. More to come!