April 26 2018
East End Brewery
"The average density in the COMA system would have to be at least 400 times greater than that of visible matter."
Fritz Zwicky
Henceforth, it shall be known as Dark... Matter.
Astronomers are spherical bastards.
No matter how you look at them, they are just bastards.
-- Fritz Zwicky
Vera Rubin
We use it to explain 85% of the mass in the Universe
https://youtu.be/PviYbX7cUUg
By eiffl
Astronomy on Tap presentation, April 26 2018