RE: https://scicomm.xyz/@LIGO/116051346507662792
Did you know that witches.town, one of the first really popular Mastodon instances, used the sound of two black holes merging, registered by the @LIGO, as its notification sound?
And since eldritch.cafe intend to preserve its predecessor’s legacy, we still do the same.

![article overview screenshot added because the site did not provide one
LIGO Scientific Collaboration
Exceptional tests of general relativity with GW250114
Artistic visualization of the GW250114 event. [Image credit: LIGO Scientific Collaboration/Sonoma State University/A. Simmonet]
In January 2025, the LIGO-Virgo-KAGRA collaboration observed an exceptionally loud gravitational-wave signal: GW250114. It stands out as the clearest one observed thus far, about three times louder than the first detection in 2015. The signal matches what is expected when two black holes of nearly equal mass and low spin spiral together, collide, and settle into a single, larger black hole.
[...]](https://files.mastodon.social/cache/media_attachments/files/116/015/593/781/035/478/small/49a89aeea1331da9.png)


