Is Dark Energy Antigravity?

Dark energy is the name given to an unexplained force that is drawing galaxies away from each other, against the pull of gravity, at an accelerated pace. Dark energy is a bit like anti-gravity. Where gravity pulls things together at the more local level, dark energy tugs them apart on the grander scale.

Is dark matter an antigravity?

Boiling sea of particles in space may create repulsive gravity. The mysterious substance known as dark matter may actually be an illusion created by gravitational interactions between short-lived particles of matter and antimatter, a new study says.

Is dark energy anti matter?

Most of the universe is made up of dark energy, a mysterious force that drives the accelerating expansion of the universe. ... Dark matter is not antimatter: Antimatter annihilates matter on contact, producing gamma rays. Astronomers do not detect them.