What Is Dark Matter Made Of

Two varieties of dark matter have been found to exist.

What is dark matter made of.

Dark matter appears to be a form of matter made up of an entirely different class or classes of subatomic particle. Just like dark energy we don t know a whole lot about dark matter. Together dark energy and dark matter make up 95 of the universe. Because scientists can t see dark matter directly they have found other ways to investigate it.

Other than that dark energy is a mystery but an important one. Dark matter could be made of one kind of particle or many. Dark matter may be made of baryonic or non baryonic matter. But it seems that 27 of the universe or about one quarter is made up of the strange stuff.

Those particles might be massively heavy or wispily light. The rest everything on earth everything ever observed with all of our instruments all normal matter adds up to less than 5. One of the most promising is called a wimp. The matter that makes up dark matter could different.

That s almost all of it. The missing matter. Dark matter makes up about 25. It may be filled with particles predicted by theory but that scientists have yet to observe.

Most of this baryonic dark matter is expected to exist in the form of gas in. But there is a long list of hypothetical particles that might well exist and if so could have survived from the big bang in sufficient numbers. Is dark matter made from supersymmetric particles. The rest is dark matter.

We think it only interacts with other matter and itself via gravity but dark matter could turn out to have interactions with any force of nature known or unknown. Dark matter may not be made up of the matter we are familiar with at all. The rest of the universe appears to be made of a mysterious invisible substance called dark matter 25 percent and a force that repels gravity known as dark energy 70 percent. Although we don t know the exact masses of neutrinos we at least have evidence that they exist.

The first variety is about 4 5 percent of the universe and is made of the familiar baryons i e protons neutrons and atomic nuclei which also make up the luminous stars and galaxies. To hold the elements of the universe together dark matter must make up approximately 80 percent of the universe. What is dark energy. A weakly interacting massive particle.

Roughly 70 of the universe is made of dark energy.