La Preuve Par l'Image 2021




In 2019, the CNRS launched a partnership with the ACFAS to organise the French edition of La Preuve par l’Image, an annual photo competition first held in Quebec in 2010. For this third CNRS edition, researchers were again invited to submit their best scientific images. The competition challenges participants to showcase their research by means of eye-catching, thoughtprovoking images rather than words. In addition to their aesthetic value, these are also research tools that enable experts to interpret their findings, advance knowledge, and engage in science outreach with the general public. The titles, captions and technical descriptions supplement this approach, plunging us into the fascinating world of scientific research. The exhibition brings together the submissions of
the twenty prize winners selected from among some 200 participants by a jury of professionals from the image and science sectors.


CNRS Institute(s)


Digital version

Editorial and graphic design and production

Project team: Christine Chapon, Christine Girard, Anne-Emmanuelle Héry, Christelle Lopez, Marie Mabrouk
Captions: Anne-Sophie Boutaud
Translation: Patrick de Mornay
Supervision of translation: Valerie Herczeg
Graphic design: Clément Prats

Description of digital format

200 MB pdf files of the 21 panels to be downloaded for printing in 70 x 100 cm format from the printer of your choice.

Booking information

The loan is free of charge for a free presentation to your public, after signing a loan agreement.
The exhibitions can be complemented by a selection of films recommended by our scientific mediation officer.

Loan conditions in digital format

Printing costs for digital versions are to be borne by the borrower.

CNRS Images,

Our work is guided by the way scientists question the world around them and we translate their research into images to help people to understand the world better and to awaken their curiosity and wonderment.