Hi everyone! I'm sure you've heard that most the mass in the universe is mysterious dark matter. But is that really the case? We sure do see more gravity than can be explained by the ordinary matter in stars and gas using gravity as we know it but perhaps we are simply wrong about how gravity works? It is precisely this idea that Mordehai Milgrom in 1983 decided to persue. He created what is now know as modified Newtonian dynamics (MOND). This is the leading modified gravity theory and has had a large number of predictions come true. Because most people don't know much about this theory I've created a website that answers the most frequently asked questions about it. It discusses what it can do (rotation curves), what it sort of does (lensing) and why it so far fails to replace general relativity (clusters, structure formation, CMB and BBN). Hopefully some of you find it a useful reference :) link removed If you have any further questions I'd be happy to answer them!