Isabelle Grenier

Isabelle Grenier is a distinguished astrophysicist and Professor of Astrophysics at Paris Cité University, affiliated with the Astrophysics, Instrumentation and Modelling Laboratory (AIM) under the Faculty of Science. Her work focuses on gamma-ray emissions, cosmic ray interactions with interstellar gas, and the structure of the Milky Way, particularly through the Fermi space observatory.

• Specializes in high-energy astrophysics and interstellar medium studies
• 2022 CNES-Astrophysics prize recipient
• Key contributions to gamma-ray source cataloging and discovery of dark gas

Her research has revolutionized understanding of cosmic ray propagation and galactic gas dynamics, revealing previously undetected dark gas constituting 20% of galactic matter. She advocates for scientific outreach and data accessibility for non-expert astronomers.