[iggymcfly]

Dark matter's not that hard to explain. It's basically just the idea that when an object becomes super massive, it collapses on itself and the gravity becomes so powerful that light cannot escape from it. What's mysterious or hard to believe about that?

Also, this idea's based on actual evidence (due to galaxies orbiting invisible objects or disappearing behind dark areas occasionally, as well as more complicated reasoning that can't be explained in a short paragraph. Unlike the idea of a God which was brain-washed into people over generations despite no corroborating evidence whatsoever.