Nabila Aghanim is an Algerian observational cosmologist whose research concerns the interpretation of the cosmic microwave background and the light it sheds on galaxy formation and evolution,[1] and the structure of galaxy filaments and the warm–hot intergalactic medium.[2] She works in France as a director of research for the French National Centre for Scientific Research (CNRS), associated with the Institut d'astrophysique spatiale at the University of Paris-Saclay.