3 ms·
> It seems easy to imagine a universe in which dark matter, particles or otherwise, have literally no interactions with regular matter except via gravitation.
by wswope 3y ago
> It seems easy to imagine a universe in which dark matter, particles or otherwise, have literally no interactions with regular matter except via gravitation.
Very much a valid hypothesis
https://en.wikipedia.org/wiki/Sterile_neutrino https://en.wikipedia.org/wiki/Sterile_neutrino
- mikhailfranco 3y agoNeil Turok has recently proposed cosmological models based purely on the existing Standard Model with sterile right-handed neutrinos. No new forms of Dark Matter required. One RH neutrino must be massless, and another must be 4.8 x 10^8 GeV. https://arxiv.org/abs/1803.08930 https://arxiv.org/abs/1803.08930