A HERA antenna at night in the Karoo, South Africa (IMAGE)

University of California - Berkeley

A HERA antenna at night in the Karoo, South Africa

Caption

The Milky Way Galaxy in the nighttime sky above the HERA array. The telescope is only able to observe between April and September, when the Milky Way is below the horizon, because the galaxy produces a lot of radio noise that interferes with the detection of faint radiation from the Epoch of Reionization. The array sits in a radio-quiet region where radios, cellphones and even gasoline-powered cars are prohibited.

Credit

Dara Storer

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