Thanos fought Asgard in Blood And Thunder, a 1993 Marvel event spanning several titles created by Jim Starlin, Ron Martz, and Ron Lim, among others. First, Thanos did this. Then this:
Basically, Thanos stole immortality from Odin. The best I can say about it is that it crossed over with Peter David’s Captain Marvel title, which Jim Starlin was drawing, so we got to see Starlin draw Thanos again. But overall, it felt too “small” for a Thanos story. Like they wasted him on this. Fortunately, his next appearance was in Avengers: Celestial Quest, which was pretty damn good.