I visited the Cité de l’Espace with my sister during last August holidays. Believe it or not, I had never been there before so I was looking forward to it.
The museum / park is very comprehensive and informative, especially for children and people who would like to know some basics about rockets, satellites and space exploration. Among the different interactive devices you can play with a gyroscope, try to dock into the ISS, launch a vehicle into a stable orbit, experiment how a satellite’s orbit parameters affect its ground-track…
I especially liked the exhibitions about celestial mechanics, space exploration and life in space, the path to the infinite and the real-size replica of the MIR space station.
The only downside I find is the price of the ticket, above 20 €. It’s true that there are discounts for students, Airbus employees, etc., but when I compare it with the National Air and Space museums of the Smithsonian institution in DC which are entry free I am disappointed. I believe museums and especially science-related museums should be very affordable for families with small children, when they are most captivated by science at play.
The Cité de l’Espace was definitely worth a visit.