1. Globular clusters show a relationship between colour and radius. This is described in . The reason for this is not understood but may not be related to antigravity matter.
2. Several concerns are listed in the Analysis of Elliptical Galaxies.
3. In Investigation we conclude that antigravity matter should approach to within 2 AU of the Sun. This seem far too close.
4. Work continues to define the values of the parameters relating to antigravity matter Gna, Gaa, Dab, Pab etc.
© Tim E Simmons 2008 to 2015. Last updated 7th August 2015. Major changes are logged in .