New device might be able to detect high-frequency gravitational waves, test run showed 2 candidate events

Newly developed detector uses quartz crystal and superconducting quantum device to catch very high frequency acoustic waves. Its creators believe it could be used to track gravitational vawes, but different than those observed with current technology at LIGO and Virgo detectors.

Scientists already tried it and caught two different events. The problem is however, that they do not know what caused them. It might be gravitational waves, or someting else like charged particles or an internal atomic process. It could also might be able to detect some of the high mass dark matter candidates.