Puggo - Jar Jar's Yoda said:

Stu said:
Also, the idea that they could blow up the Death Star with just one shot from a single small fighter really strains credibility.

This is the theme of a lot of great movies - the small and meek defeating the big and strong. The classic David and Goliath. And in this case, it wasn't just one shot... that one shot required a whole team effort to research, prepare, and execute.

But if the empire was advanced enough to build something like the Death Star, you'd think they wouldn't use a reactor design that would allow the thing to blow up like a bomb because that would be to vulnerable to sabotage. And if they did, they would take every precaution to prevent that. It seems pretty amazing that the rebels could find this weakness when the very people who designed the thing didn't notice it, especially when the empire has a lot more resources than the rebels.