5 ms·
>dark matter was truly “discovered” in the 1970s by Vera Rubin as a nit: dark matter was actually discovered in the 50's with the first direct detection of neu
by Avshalom 9y ago
>dark matter was truly “discovered” in the 1970s by Vera Rubin
as a nit: dark matter was actually discovered in the 50's with the first direct detection of neutrinos, which is why-in the 70's- "maybe there's just a bunch of matter not interacting with photons" wasn't laughed out of the room.
- fooker 9y agoNeutrinos are no longer considered to be 'dark matter'. Before the 1980s it was, though.
- Avshalom 9y agoNeutrinos aren't the dark matter responsible for the bullet cluster, rotation curves etc... But dark matter as a term is just a catch all for particles that don't interact with photons, hence hot (neutrinos) and cold (what we need for galaxies)
- mpc755 9y agoDark matter was actually discovered in the early 1800s when the first double-slit experiment was performed, as it is the medium that waves.