From Mines to Stargazing: A German Region Transforms to Host an Elite Astrophysics Center

Germany is transforming a former mining region into the future home of the Görlitz Center for Astrophysics. The new gravitational wave observatory marks a scientific milestone and is generating major excitement across the region.

In the Lusatia region, several projects are aimed at transforming the area after open-pit mining.

Promising feasibility studies are currently underway. The Lusatia region offers an ideal foundation for the construction of the so-called Einstein Telescope.

Lusatia Has Several Distinct Advantages

This type of telescope requires ample space, quiet surroundings, and above all, stable ground. Ideally, the telescope should be located between 200 and 300 meters underground. Only then will it be able to reliably detect gravitational waves.

In addition, Lusatia has a significant advantage: its bedrock is made of granodiorite, a geological formation that provides a level of structural stability found in very few other locations.

“As everyone knows, when a truck passes in front of a house, the windowpanes begin to vibrate. However, even that movement is a million times greater than the tiny change in length we aim to measure,” explains geophysicist Andreas Rietbrock, co-leader of the Einstein Telescope project.

As a result, the telescope is not only highly sensitive to noise, but also extremely susceptible to other forms of ground movement and underground disturbances. Christian Stegmann is also optimistic about these new developments.

A Feasibility Study Offers Hope

Together with Andreas Rietbrock, he is leading the Einstein Telescope feasibility study. Christian Stegmann is a professor in the Department of Astroparticle Physics at the University of Potsdam.

“It is a unique opportunity; one that allows us to look back in time at events that occurred more than 13 billion years ago, giving us a completely new understanding of the entire evolution of our universe, from its very origins to the present day,” explains Stegmann.

It is worth noting that the feasibility study in this region is supported by a large amount of previously collected data. An incredible amount of knowledge is available, dating back to the era of the GDR. In total, around 34,000 boreholes were drilled during that period.

In astronomy, there are many different types of telescopes, all of which help us better understand our planet and the universe.

As a result, the team can draw on a true treasure trove of data collected by both miners and scientists. Approximately 2,000 of those 34,000 boreholes are directly helping the research team today. This has already allowed them to identify another important advantage over other possible locations.

The Rock Is Ideal

The rock known as granodiorite is not only stable and solid, but also exceptionally dry. As a result, researchers will likely need to install fewer pumps.

Otherwise, those pumps would interfere with the telescope’s sensitive sensors. Ultimately, the final decision on whether or not to proceed with the Einstein Telescope project is not expected until 2027 or 2028.

News Reference

MDR.de (2026). Einstein-Teleskop in der Lausitz: Das Flüstern des Urknalls hören. Grossprojekt der Forschung. Naturwissenschaft. Wissen.

TU Dresden. (2026). Das Einstein Telescope: Ein neues Fenster zum Universum. Einstein Telescope Lausitz.