Science is a process, not a result. It is in particular a process of epistemology - it's a means of obtaining and verifying knowledge. Anyone who is wed to a theory as opposed to the facts is not a scientist. I've been watching Carl Sagan's "Cosmos" and there is a great episode about Johannes Kepler. You see, Kepler's original theory was that the planets travel around the sun in perfect circles nested in perfect solids nested in other perfect circles and so on. Kepler spent many long, frustrating years trying to match his theory to the data, but he couldn't make it work. At one point, he decided the data he had on hand was flawed, so he sought out Tycho Brahe who had the best data on the motions of the planets. Even with Brahe's excellent data, Kepler couldn't make his theory work. So at long last, he gave up his theory. And in doing so, he was able to make a great scientific achievement - the first laws of planetary motion. You see, the planets tr...