I was in France recently and I bought myself a copy of the magazine, which is more of a large book.
I'm sorry to say that I found it rather disappointing. It was mainly text articles about various parts of the world and the moon and interviews with explorers and hosts of TV travel programmes with illustrations from "Tintin" thrown in but not always relevant. For example, there are a couple of articles about exploring the South Pole with illustrations of "Tintin in Tibet"! Apart from the fact that they are both lands of cold climate, I see little connection.
If there are references to Tintin's comics, they are mainly information that could be obtained from other sources such as books by Michael Farr and Benoît Peeters.
Herge's sketch work was just really six pages of three scenes from the moon books. A few more would have made it more worthwhile.
Actual articles on Tintin and his books are brief and only take up a few pages of a 164-page book. What I did find interesting were details about the American movie "Destination Moon" and how it may have influenced Herge's own moon adventure which started publication just a few months after the movie's release.
There was also an article about the life of con-man Fernand Legros and how his eccentric appearance (large hat, beard and sunglasses) was the inspiration for Endaddine Akass, the mysterious cult leader in "Alph-Art".
Also included was an interview with artist François Schuiten who recently drew "Le Dernier pharaon" ("The Last Pharaoh"), the latest Blake & Mortimer (but which some may consider non-canonical) and how it was influenced by the Scan Pyramids project
. Schuiten has often worked with Hergé biographer Benoît Peeters.
All in all, though, it strikes me as more of a sort of junior "National Geographic" with elements of Tintin thrown in in order to encourage sales.