New Member
New member in the Gravitational Waves group
May 8, 2025
Gravitational Waves GroupSakshi Satish Madekar joined the Gravitational Waves group as a PhD student
Sakshi Satish Madekar holds a Master’s degree in Physics with a Minor in Data Science from IISER Mohali, India. She completed her final year project on testing General Relativity using Gravitational Waves at the University of Mississippi. She is a DocFam+ and Marie Skłodowska-Curie fellow and has joined the Gravitational Wave Group at IFAE to pursue her PhD. Her research is focused on the application of gravitational wave observations to gain deeper insights into the physics of compact binary mergers.
Welcome Sakshi!

Gravitational Waves
Spain strengthens its participation in major gravitational-wave infrastructures
December 10, 2025
The Spanish Ministry of Science, Innovation and Universities has allocated new funding to Spain’s participation in major international gravitational-wave infrastructures, with the Institut de Física d’Altes Energies (IFAE) designated as the institution through which these contributions will be channelled.
Results
LIGO–Virgo–KAGRA complete their richest gravitational-wave observation run to date
November 18, 2025
The LIGO–Virgo–KAGRA (LVK) Collaboration has announced the completion of O4, the most productive gravitational-wave observation run so far, yielding an unprecedented number of candidate events and high-quality data for the scientific community.
Results
LIGO, Virgo and KAGRA observed 'second generation' black holes for the first time
October 29, 2025
Researchers from the Institut de Física d’Altes Energies (IFAE), through its Gravitational Waves group, participate in the LIGO–Virgo–KAGRA collaboration that has reported the first observational evidence of candidate second-generation black holes. The analysis of two gravitational-wave signals reveals binary systems with unusual mass ratios and spin configurations, opening a new window on black-hole formation in dense astrophysical environments.
