I have been conducting some research into dark matter and dark energy. The thing that always gets me is that the two act completely different, one causing a repulsive force, and one causing a gravitational force stronger than anything else. My theory is simple. The idea is that a hybrid of these 2 items exists. It would be a heavy particle, but with a high energy level. When two galaxies get close, they would come together, then continuing accelerating through the universe. I will be giving a presentation at my school science club meeting, and was wondering if anybody had any ideas on how to improve this theory. Thank you for any information or support given.