Uhhh? The constant that determines the force of attratction due to electric and magnetic fields is 9X10^9 and gravity is only 6.67X10^-11. If electromagnetic forces were responsible for gravity then planets and Suns would attract each other with tremendous forces that exceed anything observed. Ahh yea and one more thing - Moon does have gravity -otherwise the astronauts would just fly off the service of the Moon as they don't possess a charge. Maybe there will be major changes in physics but something like this???