Yet astrophysicists believe it and dark energy make up most of the mass of the cosmos.
What is dark matter made out of.
These are thought to power distant k type quasars.
Because scientists can t see dark matter directly they have found other ways to investigate it.
What is dark energy.
Dark matter appears to be a form of matter made up of an entirely different class or classes of subatomic particle.
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.
One of the most promising is called a wimp.
Dark matter may not be made up of the matter we are familiar with at all.
Just like dark energy we don t know a whole lot about dark matter.
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.
Roughly 70 of the universe is made of dark energy.
The rest everything on earth everything ever observed with all of our instruments all normal matter adds up to less than 5.
The matter that makes up dark matter could different.
But it seems that 27 of the universe or about one quarter is made up of the strange stuff.
The rest is dark matter.
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.
Scientists named this stuff dark matter.
Dark matter doesn t emit light.
That s almost all of it.
Dark matter may be made of baryonic or non baryonic matter.
That only leaves a small 5 for all the matter.
Together dark energy and dark matter make up 95 of the universe.
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.
To hold the elements of the universe together dark matter must make up approximately 80 percent of the universe.
It can t be directly observed with any of the existing tools of astronomers.
A weakly interacting massive particle.
Two varieties of dark matter have been found to exist.
Dark matter makes up about 25.
Other than that dark energy is a mystery but an important one.