So 140 differing opinions on dark matter eh?
Dark matter and dark energy are the greatest unsolved mysteries of the Universe and I hope that we will get to the bottom of this enigma within the next few years (before I die).
Whatever happened to the theory that neutrinos carry a tiny amount of mass and might therefore account for dark matter? That seems to have gone quiet. Still, it's as exciting as the discovery of quasars back in the 60's. Barely believable then but fully understood now.