Dark Energy. Scientists have discovered that a mysterious pressure dubbed dark energy makes up about 68 of the total energy content of the cosmos but so far we dont know much more about it. Dark energy is the name given to the mysterious force thats causing the rate of expansion of our universe to accelerate over time rather than to slow down.
By comparison ordinary matter makes up only 4 of the universes energy. Since it is an unknown source scientists call it dark energy. The curve changes noticeably about 75 billion years ago when objects in the universe began flying apart at a faster rate.
It is an irony of nature that the most abundant form of energy in the universe is also the most mysterious.
Other than that dark energy is a mystery but an important one. Phantom energy is a variation on quintessence where its density actually increases as the universe expands as opposed to most models of dark energy where the density stays constant. The contribution of dark energy. Negative energies are subtle entities who have an intent to harm others and black energy is their primary weapon of attack.