Re:Dark matter, I don't buy it (Score 1)

That's not a correct analogy. Back then people were convinced that everything revolved around the earth due to religiuos bias. Even when data proved otherwise, they would not give up on that theory. Today, astronomers know they cannot explain the irregular orbit relationship for a galaxy (dark matter) and therefore they are testing theories about what it can be, i.e. heavy big-bang relics, burned out stars, neutrinos, cold matter, or proposing new theories of gravity which explain large scale behavior (you can fit any mathematical model to data).