Date sent: 5 April 2017, 17:00

From: Anna Watts (

Subject: Pierre Binetruy

Dear IAU Div D Members,

We are deeply saddened to hear that Pierre Binetruy has passed away.  He had been fighting cancer.

Pierre was one of the proposers of the IAU D1 Gravitational Wave Astrophysics Commission and a member of the Organizing Committee. He was a key person, passionate, inspiring, and a promoter of space gravitational-wave astrophysics. He had responsibility for the French contribution to the LISA mission. He was not only a  valuable and prominent scientist, but also a “gravity” mentor for students and non-specialists. He devoted part of his work to the dissemination of scientific culture, where he had a huge impact. His online classes of astroparticle physics and cosmology, and his free online course Mooc "Gravity! From Big Bang to Black Holes" had reached out to many thousands of people. He will be sorely missed as colleague, mentor, and friend.

Anna Watts
Secretary of IAU Div D Steering Committee

Associate Professor, University of Amsterdam


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