Along with #dark #energy, dark #matter represents a major embarrassment for #physicists. Together, these two unknowns mean that over 95 per cent πŸ“Š of the #universe is made up of stuff not #categorised πŸ“‰ in the #standard model of #particle #physics, our best theoretical picture of #material #reality https://www.newscientist.com/definition/dark-matter

https://en.wikipedia.org/wiki/I_know_that_I_know_nothing

Picture : https://commons.wikimedia.org/wiki/File:Pedra_Azul_Milky_Way.jpg

Dark matter

What’s invisible, but bigger than anything we can see? It sounds like the beginning of a bad joke, and for physicists, that’s just what it is. All our cosmological observations seem to suggest that normal matter we can see – the sort that makes up you, me, the planet we live on, the sun our …

New Scientist