Hi Hilmar,
Due to some of the latest research being done large cracks are starting to appear in the currently held beliefs, i.e. Gravity's effect travells at greater than the speed of light, possibly by a factor of 20 fold. Check this link out ftp://rock.helsinki.fi/pub/misc/matpitka/padtgd/Zanom.pdf

Regards N Mc Donald

P.S. The latest research is creating more questions than answers. Reality is getting stranger by the minute.