I would expect newspapers to be more knowledgable about politics and international relations than scientific topics like physics. The latter is too broad a category, the former is usually the paper's primary focus.
I wouldn't quite say that. Some aspects are opinions, but there's plenty of facts. Such as "House Reps A and B are cooperating on a bill regarding X" - that's a fact. What your position on X is, whether the bill is a good or bad idea, and why A and B are cooperating on it are opinions.
