At the very least, then the Kirby estate should share the rights with the other creators. Where are Ditko's heirs, or Heck's?

And I wonder when all the Disney/Pixar/Marvel lawyers figure out The Incredibles ripped off the Fantastic Four?

And Iron Man was originally created (artistically, at least) by Don Heck. Kirby worked on some of the early Tales of Suspense, but Heck designed the basic premise of the character.

Jeff Atwood makes a valid point: writing software is craftsmanship and not engineering. And that's why there's so much crappy, buggy, bloated, nearly unusable software. It SHOULD be engineering. And the most stable software ever written is engineered. And it's never crashed once. It's the flight control software for the Space Shuttle.

While not technically "spacecraft", here are my favorite ways of getting from point A to point B across interstellar distances:

1. Oan Power Ring
2. Kryptonian body (solar charged, pre-Crisis)
3. Boom Tube

And several real life examples (granted, a bit on the slow side, and no room for passengers!):

Pioneer 10 & 11
Voyager 1 & 2