RE: Re: RE: [FT] Strange Forces

G'day,

> As I had understood it, antimatter has positive mass and therefore
> normal gravity; however, it is possible that there are particles with
> negative mass, which would attract each other but repel particles with
> positive matter. 

There's also mirror matter... maybe we're seeing the gravitational
effects
of a mirror matter planet within our local system (then again maybe I
know
just enough physics to be the equivalent of a deranged looney about to
shoot
their own foot off).

Cheers