Julien Pearce 6:20 am, December 09, 2021

François Graner, physicist and researcher at the CNRS and at the University of Paris, answers Julien Pearce's questions.

Together, they are interested in the pollution emitted by rockets.

The development of space tourism could pose an ecological problem.

Guest (s): François Graner, physicist and researcher at the CNRS and at the University of Paris