The **SKA** will be the largest radio telescope ever built, with a collecting area of
over a square kilometre. It will be able to detect the faintest signals from the
early …
The **Hydrogen Epoch of Reionization Array** is one of the largest radio
interferometers in the world, and is looking to map the effects of the first stars,
galaxies and black …
The **Experiment to Detect the Global Eor Signal** is a "global 21cm signal" experiment.
It reported the [first evidence](https://arxiv.org/ftp/arxiv/papers/1810/1810.05912.pdf) …
