I found a collection of Jean-Claude Mézières and Pierre Christin's Valérian and Laureline stories at the library. It's such a shame that this stuff isn't widely available in English. European comics pop up translated sometimes, but I guess they don't sell well enough to remain in print. I hadn't seen it before, but I sure wish that I could draw astronauts like Mr. Mézières. Here's some sketches of Laureline: