I'm planning trip to France, what would be some interesting places to go for someone who is into aeronautics and space engineering?
There are several places in France that are of interest to people interested in aeronautics and space engineering. Some popular options include:

- The Aérospatiale Centre d'Étude et de Recherche en Aerospatiale (CERA) - This research center is located in Toulouse and is dedicated to the study of aviation, astronautical, and related fields. It has a collection of aircraft, spacecraft, and other equipment on display.

- Airbus headquarters - Located in Toulouse, this company is one of the world's leading manufacturers of civil and military airplanes. Visitors can see a range of products from its wide variety of planes, as well as learn about the history of the company and its innovation in technology.

- Montségur observatory - This observatory is located high up in the Pyrenees mountains, near the Spanish border. It offers an unparalleled view of the night sky and has been used by astronomers for over 150 years.

- Parisian aerospace industry - The city of Paris is home to many important companies involved in the field of aeronautics and space engineering, including Airbus, Dassault Aviation, and Safran Aircraft Industries. Visitors can tour these facilities and hear firsthand accounts from engineers and executives about their work in the industry.

These are just a few examples of places you might consider visiting if you're interested in aeronautics and space engineering in France. Each destination will have unique features and activities that appeal to different interests and backgrounds.