![ATLAS Experiment on Twitter: "The vast majority of matter is in the Universe is Dark. Dark Matter does not emit or reflect light, nor has it been observed interacting with ordinary matter. ATLAS Experiment on Twitter: "The vast majority of matter is in the Universe is Dark. Dark Matter does not emit or reflect light, nor has it been observed interacting with ordinary matter.](https://pbs.twimg.com/media/EIOEvOwW4AAXHw-.jpg)
ATLAS Experiment on Twitter: "The vast majority of matter is in the Universe is Dark. Dark Matter does not emit or reflect light, nor has it been observed interacting with ordinary matter.
![cosmology - Why is the ratio dark matter / normal matter bigger today than in the past? Is it the dark matter that increased or the normal matter that decreased? - Physics Stack Exchange cosmology - Why is the ratio dark matter / normal matter bigger today than in the past? Is it the dark matter that increased or the normal matter that decreased? - Physics Stack Exchange](https://i.stack.imgur.com/KTiql.gif)
cosmology - Why is the ratio dark matter / normal matter bigger today than in the past? Is it the dark matter that increased or the normal matter that decreased? - Physics Stack Exchange
![cosmology - How do they know the numbers of the energy pie chart of the universe? - Physics Stack Exchange cosmology - How do they know the numbers of the energy pie chart of the universe? - Physics Stack Exchange](https://i.stack.imgur.com/IhWZK.jpg)
cosmology - How do they know the numbers of the energy pie chart of the universe? - Physics Stack Exchange
![Universe Theory Of Relativity General Relativity Cosmology Dark Energy, PNG, 1280x521px, Universe, Albert Einstein, Area, Brand, Universe Theory Of Relativity General Relativity Cosmology Dark Energy, PNG, 1280x521px, Universe, Albert Einstein, Area, Brand,](https://img.favpng.com/0/1/1/universe-theory-of-relativity-general-relativity-cosmology-dark-energy-png-favpng-syzAd3iMLF8A3iCxsVveAkb8R.jpg)