What is dark matter ~ Ronald Anderson

No one has detected a single particle of dark matter, yet it has become a crucial component of modern astronomical theories.

Without dark matter much of cosmology falls apart.  Ronald's talk will cover :

History - 

Observations that Dark Matter might exist, perhaps.

Candidates for Dark Matter

Hidden assumptions - Is Newton's Law of Gravity completely accurate?

Is Mordehai Milgrom's idea "Modified Newtonian Dynamics (MOND)" the answer?