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from the “Binary Merger Observations and Numerical Relativity” group

Artistic impression of a wide laser beam, reflected by a large glass mirror in the arm of a gravitational-wave detector. In the background are merging black holes in front of a starry sky and warped space-time.

Gravitational-wave detectors can now “autotune” their signals

May 13, 2026

Crucial contributions by AEI researchers: How “off-key” detector calibration can bias signal-based tests of Einstein’s general theory of relativity. more

Artist's impression of a black hole which was formed in the merger of a binary black hole.

Testing general relativity with new gravitational-wave observations

May 11, 2026

Re-examining the validity of Einstein’s theory with the latest gravitational-wave data more

Simulated gravitational wave events in a grid, colored in shades of blue and green, with logos at the bottom.

New catalog of LIGO-Virgo-KAGRA observations published

March 05, 2026

The latest catalog, GWTC-4, includes 128 new candidates from the fourth observing run, more than doubling the previous total. more

Abstract 3D visualization featuring colorful wave-like structures and a central gray sphere on a black backdrop.

Testing Einstein’s theory of relativity with the clearest gravitational-wave signal yet

January 29, 2026

An international team, with key contributions from AEI researchers, identified three gravitational-wave tones in GW250114 for the first time and conducted the most stringent tests of general relativity. more

Graphical display of cumulative detections across all four observing runs.

LIGO-Virgo-KAGRA Collaboration successfully wraps up its fourth Observing Run

November 19, 2025

Further exciting results anticipated from O4’s remaining parts more

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