Quote taken from wormhole thread. <br /><br />"Exotic matter is repelled, rather than attracted, by gravity and is said to have negative energy - meaning it has even less than empty space."<br /><br />Would this exotic matter be attracted to itself? <br /><br />If it was, would you then be able to make a black hole out of exotic matter?<br /><br />Assuming exotic matter could be fundamentally the same as common matter with the only difference being that it posseses gravity with a reversed polarity. <br /><br />If slightly more than half the galaxies were made out of repulsive exotic matter, would that explain expansion? <br /><br />Imagine trying to land on a planet made of that.