we have absolutely no idea. we can say what it isn't, but that doesn't tell us much.
John Dalton thought that matter was made of particles.
The Universe contains matter, energy, dark matter, dark energy, empty space - and of course, lots of structures made up of those.The Universe contains matter, energy, dark matter, dark energy, empty space - and of course, lots of structures made up of those.The Universe contains matter, energy, dark matter, dark energy, empty space - and of course, lots of structures made up of those.The Universe contains matter, energy, dark matter, dark energy, empty space - and of course, lots of structures made up of those.
Dark energy. The current estimates for the distribution of mass/energy in the Universe are approximately: 68% dark energy 27% dark matter 5% baryonic (i.e. "normal") matter
yes
This is not known. All that is known about dark matter is that it has mass. Searches are underway to try to work out what it is. The existence of dark matter was learned rather recently, and its composition is still being speculated, hence the name. There are several theories about what dark matter may be made of.
This is not known. All that is known about dark matter is that it has mass. Searches are underway to try to work out what it is. The existence of dark matter was learned rather recently, and its composition is still being speculated, hence the name. There are several theories about what dark matter may be made of.
antimatter and dark matter
About 95.7% of the universe is dark matter, and the remaining percent (4.3%) is made of normal matter, plants, gases and such.
Dark matter is matter of an unknown type. It is known to exist, due to its gravitational influence, but it is not known what it is made of. There is at least 5 times as much dark matter than "normal" matter.
There is a lack of OBSERVED matter, but it is quite clear (due to gravitational effects), that dark matter indeed exists. There are all kinds of pieces of evidence in favor of dark matter. It isn't known yet what it is made of.
Studies have not shown dark matter to be composed of dim stellar remnants. Dark matter is thought to be made up of a non-baryonic, non-luminous material that does not interact with electromagnetic forces. Its presence is inferred from its gravitational effects on visible matter in the universe, and its exact nature remains unknown.
Black holes are not made up of dark matter. Dark matter is a mysterious substance that makes up a large portion of the universe's mass, but black holes are formed from the collapse of massive stars.