I have a problem with the concept that science is ever settled. If we aren't constantly questioning what has gone before, we aren't doing science, we're doing dogma. And when the scientific establishment gets dogmatic and ossified, it tends to really, really annoy people.
Like 'Global Warming'. We'll talk a bit about it next week, but suffice it to say that scientists are not making their job any easier by declaring something as 'settled science' when there are other (rather obvious) issues with their theories.
This week: Black Holes.