What is the dark matter for dummies?

Most of the universe is made up of dark energy, a mysterious force that drives the accelerating expansion of the universe. The next largest ingredient is dark matter, which only interacts with the rest of the universe through its gravity. read more

Two of the biggest mysteries of both string theory and cosmology are the presence of unseen dark matter and of repulsive gravity in the form of dark energy. Dark matter: The source of extra gravity. Astronomers have discovered that the gravitational effects observed in our universe don’t match the amount of matter seen. read more

The dark matter is not for the dummies. Even experts in Cosmology (non - dummies) have yet not understood what the dark matter. Dark matter have been assumed to be present as spread out across the cosmos to explain the movement of galaxies. read more

Dark matter is not clouds of normal matter: Normal matter particles are called baryons. If dark matter were composed of baryons it would be detectable through reflected light. [Gallery: Dark Matter Throughout the Universe] Dark matter is not antimatter: Antimatter annihilates matter on contact, producing gamma rays. Astronomers do not detect them. Dark matter is not black holes: Black holes are gravity lenses that bend light. read more