What Is Dark Matter Made Out Of

That only leaves a small 5 for all the matter.

What is dark matter made out of.

The rest is dark matter. Dark matter makes up about 25. Dark matter is a form of matter thought to account for approximately 85 of the matter in the universe and about a quarter of its total mass energy density or about 2 241 10 27 kg m 3 its presence is implied in a variety of astrophysical observations including gravitational effects that cannot be explained by accepted theories of gravity unless more matter is present than can be seen. Dark matter may be made of baryonic or non baryonic matter.

More is unknown than is known we know how much there is and we know some of its properties. 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. Two varieties of dark matter have been found to exist. The rest everything on earth everything ever observed with all of our instruments all normal matter adds up to less than 5.

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. It may be filled with particles predicted by theory but that scientists have yet to observe. These are thought to power distant k type quasars. To hold the elements of the universe together dark matter must make up approximately 80 percent of the universe.

If the dark matter is made mostly of machos then it is likely that baryonic matter does make up most of the mass of the universe. Scientists named this stuff dark matter. One of the most promising is called a wimp. The matter that makes up dark matter could different.

Yet astrophysicists believe it and dark energy make up most of the mass of the cosmos. What is dark energy. Dark matter may not be made up of the matter we are familiar with at all. That s almost all of it.

Together dark energy and dark matter make up 95 of the universe. It can t be directly observed with any of the existing tools of astronomers. Roughly 70 of the universe is made of dark energy. A weakly interacting massive particle.

Other than that dark energy is a mystery but an important one. Dark matter appears to be a form of matter made up of an entirely different class or classes of subatomic particle. Dark matter doesn t emit light. Some astronomers speculate that dark matter may be made up of copious numbers of black holes.

Most of this baryonic dark matter is expected to exist in the form of gas in.