There's a surprising amount of science in this adventure of Tintin's, follow up to 'Objectif Lune'. Perhaps Hergé felt he had to educate his readers, who wouldn't have been as clued up on the rules of space travel in the 1950s as we are now. Since the ever dim Dupont et Dupond are on board the fusée (rocket), they're the ones who say silly things so that Tournesol can correct them and tell us that actually you can't hear sound in a vacuum, or that the rocket won't get wet when they land on one of the moon's 'seas'. It's a bit of a shame that the usually eccentric and hard-of-hearing Tournesol dons a hearing aid in this story and is rather serious and competent, which is perhaps why Haddock plays the fool more than usual.
What Hergé didn't know though was that you can't land a rocket the size of a 747 on the moon, nor take along a vehicle the size of a Chieftan tank to do lunar pleasure trips. But the 1950s space science stuff is great fun.
There are plenty of plot twists and cliffhangers as Tounesol's carefully planned trip goes from bad to worse. It's all great fun, and very funny. Milou is obviously a very good dog if he's allowed to wear a spacesuit for extended periods. But there are no lamp posts on the moon I suppose...
These large-format hardbacks are very good value and make a great collection. I use them to improve my French; this one seemed a bit harder in that respect than the last couple I've read, but it's still a fairly easy read.