A great artist has passed. In a way, two have: Under his own signature, Jean Giraud illustrated some of the finest adventure comic stories of the 20th century, most notably the wildly-popular adventures of Lieutenant Blueberry. (The Lieutenant was later promoted to higher ranks.)
And under the name Moebius, Giraud drew surreal, imaginative tales of science-fiction and fantasy. His work was a special highlight of Metal Hurlant magazine and of its American outlet, Heavy Metal. He was easily one of the most respected and popular illustrators of graphic fiction of all time.
I am informed he passed away this morning. No other details are yet available and it's late. I would imagine the Internet will be full of tributes and sadness this weekend and for many days thereafter.