To celebrate the 80 years of the CNRS, the Institut d'astrophysique de Paris organizes a sleepless night of astronomy, from Saturday 8th to Sunday 9th of June, 2019. On the program: observations (in partnership with the “French Astronomy Association”, the “Société Astronomique de France” and “The little pickers of stars”), a marathon of small conferences (30 minutes), from 8 pm to 8 am, with the theme: “Where will astrophysics be when the CNRS turns 100?”.

These conferences will be broadcast live on the YouTube Channel “Le Sense of Wonder”, and hosted by Sébastien Carassou, Étienne Ledolley, Alice Thomas and Sophie Félix. They will be illustrated by the cartoonists from the Café des sciences. A quiz will be organized by doctoral students, and an exhibition will present in more detail the different research activities at the IAP, but also those of the International Astronomical Union.

Live broadcast here: https://youtu.be/Ik-aBWmHTLU

Pictures taken all night long in the amphitheater and else

The drawings (in French)

Courtesy: Y. Dubois (Horizon-AGN simulation/IAP) & Euclid Satellite (ESA/C. Carreau) ; ESO/UltraVISTA DR4 ; focal plans of the VIS/Euclid instrument (J. Mouette/IAP) ; simulation of a black hole (A. Riazuelo/IAP)

Programme of the conference marathon

All talks and conferences are given in French.

Antoine Petit 19:30Inauguration of the white night by the President and Chief Executive Officer of the CNRS
Sandrine Codis 20:00“The large-scale structure of the Universe”
Roland Lehoucq 21:00“Science and science-fiction”
Miho Janvier 22:00“The Sun”
Guillaume Hébrard 23:00“Exoplanets”
Frédéric Daigne 00:00“Gamma-ray bursts”
Pauline Zarrouk 01:00“Dark energy ”
Sylvain Bouley 02:00“The earthes of the sky, from Flammarion to today”
Karim Benabed 03:00“The cosmological fossil radiation”
Pierre Guillard 04:00“Galaxy evolution”
Francis Bernardeau 05:00“Primordial cosmology”
Alain Riazuelo 06:00“Back holes”
Kumiko Kotera 07:00“High energy Neutrinos”
Guy Perrin 08:00Closing of the marathon by the Scientific Deputy Director of the Institut national des sciences de l'Univers
Karim Benabed 08:30Conclusion

Astronomical observations on the terrace

Three groups of 10 people will be accompanied (at 10pm, 11pm, 00am, 01am, 2am, and 3am) to the terrace, where will be several telescopes, and animators of the “French Association of Astronomy”, the “Société Astronomique de France” and “The Little pickers of stars” (association working towards introducing the world of space and stars to hospitalized children).

The observation sessions of the Moon and the planets Jupiter and Saturn, will take place every hour between 22:00 and 4:00, if the sky is clear. A remote controlled telescope will allow to take and to process astronomical images, from a computer installed in a dedicated room.

Our partners

puce The Île de France Region through its programme “Science for all 2019 - scientific, technical and industrial culture”

puce The CNRS

puce The International Astronomical Union

puce The Lagrange Institute, Paris

puce The “French Astronomy Association” (in French)

puce The “Société Astronomique de France” (in French)

puceThe little pickers of stars” (in French)

puce Sorbonne Université

Terms of access

Admission is free, without registration (subject to availability). A food truck (http://www.californiajo.com/) will be present in the yard until around 1 am. Hot drinks will be available all night, and pastries will be offered for breakfast.


puce Jean Mouette
Institut d’astrophysique de Paris, CNRS, SU
mouette [at] iap [dot] fr

Web editing: Valérie de Lapparent
Layout: Jean Mouette

May 2019

Institut d'Astrophysique de Paris - 98 bis boulevard Arago - 75014 Paris