IS OUR UNIVERSE MICROSCOPIC?

"When matter is broken down to the point where even a forensics team can not detect it, does that mean it is not there at all? Until of course such advancements have been made. Or does it degrade forever? We do know that it carries less and less wait and by the time it is microscopic, it is so light weight that it actually goes up. If it continued, would it break the earth's gravitational field and be taken by space?" ~ Aurora.