Dark Matter

Observations and Need for Theory

Motion of Visible Matter

Tangential Velocity - v = (GM/r)^(1/2)

Doppler Shifts

Discrepancy Occurs in Various Systems

Vera Rubin -- Observational Astronomer

Accepted Laws and Validity of Theory

Theory of Dark Matter

Amount of Matter

Name

Shadows

Proposed Types of Dark Matter

MACROS - Massive Compact Halo Objects

WIMPS - Weakly Interacting Massive Particles

Detecting Dark Matter

Experiments

Gravitational Lensing

More Powerful Telescopes

Neutrino Detection

Ending Consequences

State of Universe

Newtonian Dynamics

A Possible Correction?