Hydrogen Epoch of Reionization Array

The Hydrogen Epoch of Reionization Array is a research facility with 331 fixed antennas arranged in a hexagonal pattern. The entire setup uses a large collecting surface to capture faint signals coming from the early universe.

The facility built upon earlier research projects that paved the way for advanced observation methods. This step-by-step development process brought about modern techniques to explore the story of the early universe.

Researchers from multiple countries work together here to tackle one of the universe's biggest mysteries about how stars and galaxies first appeared. This global cooperation has turned the Karoo region into a significant hub for space science.

The facility sits in a remote location with minimal light pollution, which is ideal for sensitive measurements. Visitors should prepare for rough conditions and plan for longer travel times to reach this isolated research station.

The facility was deliberately built using cost-effective materials without compromising scientific accuracy. This practical approach shows that fundamental research does not always require expensive equipment to deliver important discoveries.

Location: Kareeberg Local Municipality

Diameter: 14 m

Operator: National Science Foundation

Address: Carnarvon, South Africa

Website: http://reionization.org

GPS coordinates: -30.72146,21.42822

Latest update: December 12, 2025 09:01