See, I don't understand why such a smart man as Dr. Tyson would say something like this. Science, unlike religion, is not dogmatic. Its goal is to find the ultimate truth, but science in itself is not a truth. At least not at the moment. An example: nobody has seen atoms, but there is evidence of their existence. Is it true that atmos exit because science says so? No! If somebody proves that atoms do not exist, and the answer to everything was something else, true scientist will agree with that. And even better scientist will work on finding counter-arguments to that new theory. Science is a path, not a truth.

Hate to disagree with Mr. Tyson, but that quote isn't really that great.

If science was always true, then the Earth would still be flat and everything in the universe would be rotating around it. Those were perfectly valid scientific (not religious) theories at one point.

If scientists were correct about everything, there'd be no need for science. Science is a journey, not a destination. It's not a set of correct answers, it's the process of finding those answers. That's what makes it great.

perhaps he is referring to the big r. the reality that exists that we all share and have very limited tools to infer any meaning from. maybe he is implying that scientific discovery has illuminated more of our existence than any religious dogma. why thunder and lightning? well its the gods up there having a row.....

So what you are trying to say, is that back the day, scientists prooved that the earth was flat? It was not just an assumption?

It was the best theory they could make with the evidence they had. They hadn't yet done the experiments and measurements to prove otherwise.

Granted, the flat earth theory was debunked thousands of years ago by ancient Greek sailors, and by the middle ages we had a pretty good estimate of the Earth's size (although the differences in those estimations helped lead to the whole Christopher Columbus debacle.)

Theories. Science has always and will always be true, Theories such as the flat earth one was never proven and so it was always just a theory while the truth is that it is a sphere, which we know by scientific theories backed up by evidence.

What I'm trying to say is that science is not a set of correct answers. Science is the process of finding those answers. The thing is, we're never going to know if the answers we have are absolutely correct. That's why we need science to either prove our answers correct or find new ones.

science is a process, so science itself isn't right or wrong, the answers it gets us are and when we have limited information science often gives us the wrong answer (though probably a better one than blind speculation)

With enough testing you can get a correct answer though to any problem using science, such as the earth being round(ish), that is scientific fact established using testing and observation(Satellites).

except when we find something that disproves science with other science. Like how we recently found out that atoms can go below absolute zero degrees.