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Reposted by Gravity Exploration Institute

LIGO Scientific Collaboration @ligo.org · 11/02/2026

Back in 2016, our scientists from @gravitycardiff.bsky.social explained the our first detection of gravitational waves youtu.be/Lcxt097G4Ps?... (Featuring our now spokesperson Prof. Fairhurst enjoying paddling in a swimming pool) #GW10Years

youtu.be

The First Ever Detection of Gravitational Waves

YouTube video by Cardiff University

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Gravity Exploration Institute @gravitycardiff.bsky.social · 06/01/2026

A 2025 news round-up from one of our GEI PhD students:

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LIGO Scientific Collaboration @ligo.org · 29/10/2025

We are pleased to announce our discovery of #GW241011 and #GW241110 Both come from binary black holes where one black hole is much larger than the other. The larger black holes have large spin. Could these black holes have formed in a previous merger? ligo.org/science-summ... #O4IsHere 🔭🧪⚛️☄️

Infographic about GW241011 and GW241110

GW241011's source contained black holes about 13 and 8 times the mass of our Sun. The spin of the bigger black hole is high and bear aligned with the orbit.

GW241110's source contained black holes about 17 and 8 times the mass of our Sun. The spin of the larger black hole is high and near anti-aligned with the orbit.

Credit: Shanika Galaudage/Northwestern University/Adler Planetarium

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LIGO Scientific Collaboration @ligo.org · 13/09/2025

A new mini-documentary by our colleagues at @uofgravity.bsky.social celebrating the 10th anniversary of our first detection and the progress in #GravitationalWave astronomy youtu.be/SqhFtkQ4f2c #GW10Years 🔭🧪⚛️🎢

youtu.be

University of Glasgow celebrates 10th anniversary of first gravitational wave detection

YouTube video by University of Glasgow

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LIGO Scientific Collaboration @ligo.org · 13/09/2025

The latest issue of @ligomagazine.bsky.social is out now and free to read 🎉 Celebrate 10 years of gravitational-wave astronomy with us 🎉 ligo.org/wp-content/u... 🔭🧪⚛️ #GW10Years

Front cover of issue 27 of the LIGO Magazine

10 years of graviational wave astronomy

GW150914 to GW231123: a signal that changed to world (p 6)

GW231123: the most massive black hole merger yet! (p 24)

GWTC-4.0 cataglgue paper (p 20)

GW observatories of the future (p 34)

Climate change conversations: Fossil-free supercomputing (p 40)

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Gravity Exploration Institute @gravitycardiff.bsky.social · 14/09/2025

Today we celebrate the 10th anniversary of the first detection of gravitational waves by @ligo.org 🎉 Research by members of the Gravity Exploration Institute in Cardiff helped lay the foundation for that detection, which opened an exciting new window to the universe. Read more about it here:

cardiff.ac.uk

A decade of discovery: Academics celebrate 10 years since the first detection of gravitational waves amid announcement of exciting new breakthrough

Scientists celebrate anniversary and tests of Stephen Hawking's black hole area theorem

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Mark Hannam @markdhannam.bsky.social · 14/07/2025

My summary of the latest @ligo.org observation paper. Massive black holes! open.substack.com/pub/fictiona...

open.substack.com

GW231123: an unearthly signal

A report on some actual science

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Gravity Exploration Institute @gravitycardiff.bsky.social · 13/07/2025

Several members from Cardiff's Gravity Exploration Institute will be taking part in this special gravitational wave science ceilidh (traditional Scottish dance) in Glasgow this week!

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Gravity Exploration Institute @gravitycardiff.bsky.social · 21/05/2025

Prof Stephen Fairhurst of the Gravity Exploration Institute in Cardiff is the new spokesperson for the LIGO Scientific Collaboration! He is the first person from a non-US institution to hold this position. We are very pleased and proud that his many years of work within the LSC have been recognised.

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LIGO Scientific Collaboration @ligo.org · 19/03/2025

🎉 We have reached 200 #GravitationalWave candidates in O4! 🎉 The fourth observing run (O4) of our detector network has had the best performance so far, with more candidates than ever before! We are currently busy analysing all these wonderful data and look forward to sharing results #O4IsHere 🔭☄️

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LIGO Scientific Collaboration @ligo.org · 11/02/2025

Nine years ago we announced to the world that we have detected #GravitationalWaves we did it! youtu.be/lslUF9gdYI8

youtu.be

LIGO -- Dave Reitze We have Detected Gravitational Waves

YouTube video by sciencejedi

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Gravity Exploration Institute @gravitycardiff.bsky.social · 10/02/2025

A recent paper from the GEI presents the first convolutional neural network (CNN) analysis pipeline for the detection of generic transient gravitational waves signals, with sensitivity across a wide range of signal parameters, used for real-time searches in data from the LIGO and Virgo detectors.

Screenshot of the paper:
"Toward real-time detection of unmodeled gravitational wave transients using convolutional neural networks"
By Vasileios Skliris, Michael R. K. Norman, and Patrick J. Sutton. Physical Review D 110, 104034 – Published 15 November, 2024.

5 types of gravitational wave signals which were injected into real LIGO-Virgo detector data in order to test the efficiency of the detection algorithm: a high frequency white noise burst (WNB), binary black hole merger (BBH), core-collapse supernova (CCSN), circularly polarized sine-Gaussian (CSG), and a cosmic string cusp (CUSP).

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Living Reviews | Relativity @livingrev-relativ.bsky.social · 25/01/2025

Living Reviews in Relativity welcomes B. S. Sathyaprakash! Expert from Penn State University and Cardiff University joins as new Associate Editor for Gravitational Waves: link.springer.com/journal/4111... #LivingRevRelativ #MeetTheEditors

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Gravity Exploration Institute @gravitycardiff.bsky.social · 13/12/2024

The first Gregynog Relativity Workshop was held at Gregynog Hall in Mid Wales, September 1-3, 1975. The topic was Thermodynamic Properties of Gravitational Fields. #flashbackfriday When Bernard Schutz @bschutz.bsky.social moved to Cardiff in 1974, he began to organize workshops where...

A group of mathematicians and physicists standing in front of an old building. Their clothes identify the time as the 1970s.

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arxiv gr-qc @arxiv-gr-qc.bsky.social · 22/11/2024

Abhinav Patra, Lorenzo Aiello, Aldo Ejlli, William L. Griffiths, Alasdair L. James, Nikitha Kuntimaddi, Ohkyung Kwon, Eyal Schwartz, Henning Vahlbruch, Sander M. Vermeulen, Katherine L.... Direct Limits on Stochastic Length Fluctuations at Radio Frequencies arxiv.org/abs/2410.09175

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Gravity Exploration Institute @gravitycardiff.bsky.social · 20/11/2024

Photos from our Quantum-Enhanced Space-Time (QUEST) experiment. This experiment searches for stochastic gravitational waves. The photos were taken by PhD student, Abhinav Patra, who has been working on QUEST in one of our laboratories at the Gravity Exploration Institute, Cardiff University.

Bird's-eye view of a part of the experiment. There are two cylinders on a table, with pipes/tubes coming out the side of them, and there are many wires around. At the bottom of the photo are the pink crocs of the scientist taking the photo.

A physics laboratory with a lot of instruments on a table and vertical wires hanging everywhere. The instruments include cylinders and lasers.

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Gravity Exploration Institute @gravitycardiff.bsky.social · 10/11/2024

Welcome to our new Bluesky account! Follow us here for updates on our activities and other news related to gravitational waves and their sources.

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