Public talk (in German) “Gravitational-wave astronomy: We can hear the dark universe!“ | 40. Neubrandenburger Tage der Raumfahrt 2025

Public talk

  • Date: Nov 8, 2025
  • Time: 04:15 PM - 05:00 PM (Local Time Germany)
  • Speaker: Karsten Danzmann
  • Location: Park Hotel Fasanerie, Karbe-Wagner-Straße 59, 17235 Neustrelitz
  • Host: 40. Neubrandenburger Tage der Raumfahrt 2025
  • Topic: Discussion and debate formats, lectures
Visualization of two compact objects orbiting each other and emitting gravitational waves. The waves propagate outward as concentric, alternating turquoise and orange rings.
Image: Numerical relativity simulation: S. Ossokine, A. Buonanno (Max Planck Institute for Gravitational Physics), Simulating eXtreme Spacetimes project; Scientific Visualization: T. Dietrich, R. Haas (Max Planck Institute for Gravitational Physics)
For thousands of years, we have been looking at the Universe through our eyes. But over 99% of the Universe is dark and will never be observed with electromagnetic waves. Since September 14, 2015, everything has changed: gravitational waves have been discovered!
We have been given a new sense and can finally hear the dark side of the Universe. The first sounds we heard came from unexpectedly heavy black holes. Gravitational waves have now become a new branch of astronomy. Hundreds of such events are now being recorded almost daily, with frequencies ranging from a few hertz to a few kilohertz. And in 2035, with LISA, an observatory in the millihertz range, we will also be able to observe low-frequency sources. No one knows what other dark secrets are waiting for us out there.
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