Mr. Grist,
In my quest to understand gravity, I learned about the smallest atom effected by gravity the hydrogen ( H-1) atom made of an electron and a proton. I realized what they had in common where magnetic fields or stored force. The magnetic field loops of the electron or proton have short reaches. That's when I saw it. In order to reach far into space the line must be a broken or (open ended), south pole seeking magnetic line. Magnetic lines are continuously being broken and reattaching to the nearest south magnetic pole they encounter. Some magnetic gravity lines travel light years into space before connecting to another south pole and with only an infinitely small amount of force the influence is very small but none the less it is there. Gravity g.
a kilogram of anything is 1000 grams or 2.2 pounds.