You know you have a good set of results when your plot fills 2 whole pages

Here are the measured properties for our most significant new detections. We have a wide range of binary black holes and a couple of neutron star black hole binaries

📊 https://arxiv.org/abs/2508.18082

#GravitationalWaves #GWTC4

Our fourth observing run has seen some of best detector performance. This allows us to see gravitational-wave signals from more distant sources and make more detection. We are making more discoveries than ever before.

The timeline shows probable detections so far. Each observing run has a greater rate of detection than the one before.

📊 https://arxiv.org/abs/2508.18080

#Astrodon #GWTC4 #Physics

In our first 3 observing runs, we found 90 probable gravitational-wave signals. Analysis of the first part of our 4th observing run add 128 new probably signals, more than doubling our catalog! Analysis of the later parts of the run is underway

📈 https://arxiv.org/abs/2508.18080

#GWTC4 #Astrodon #Science

A spacetime waltz. Simulations consistent with our 86 most confident new detections, each showing the orbiting components and their emitted gravitational waves. Each is speed up by a different amount, because we have a wide range of sources.

https://www.youtube.com/watch?v=3B6WKSWDJRE

🎬I Markin/T Dietrich/H Pfeiffer/SXS Collaboration

#GWTC4 #SciComm

Visualisations of the data from our most significant new detections. These show time vs frequency: a binary signal sweeps up from low frequency to high making a chirp. The frequency evolution tells us about the masses.

Can you spot the signals? (The second version shows a track for each)

#GWTC4 #GravitationalWaves

Our new discoveries in blue and our past ones in grey (point size indicates loudness)

We've a diverse range of sources. GW230518's source is a new neutron star black hole (like GW230529), GW231114's is two unequal black holes, GW231028's is BIG, but GW231123's is BIGGER. The more we observe, the more surprises we find

#GWTC4 #Astrodon #Science

Data from our fourth observing run, and links to data releases to accompany our latest results are available from

https://gwosc.org/

You can read more about using our data in https://arxiv.org/abs/2508.18079

#GWTC4 #OpenData #OpenScience

We have doubled the number of gravitational-wave detections. Catch up with the new discoveries with our Science Summary

https://ligo.org/science-summaries/O4a_catalog_omnibus/

#GWTC4 #Astrodon

Having more gravitational-wave observations helps us unlock the astrophysical secrets of our sources

What have we learned about the family of black holes and neutron stars from our latest observations?

https://ligo.org/science-summaries/O4a_Astro_Distrib/

#GWTC4 #Astrodon

"10 years ago, LIGO saw its first gravitational wave. After 218 detections, our view of black holes has changed forever."

https://bigthink.com/starts-with-a-bang/ligo-doubles-black-hole-haul/ by @startswithabang

#GWTC4 #O4IsHere #GravitationalWaves #Astrodon

A family portrait of 218 gravitational-wave signal! Each observing run has its own color palette, tracing the journey from our very first detection to the latest #GWTC4

#Astrodon