New form of dark matter could solve decades-old Milky Way mystery
https://phys.org/news/2025-04-dark-decades-milky-mystery.html
New form of dark matter could solve decades-old Milky Way mystery
https://phys.org/news/2025-04-dark-decades-milky-mystery.html
2 Comments
Is “light dark matter particle” the official name for this type of dark matter? I know light is meant for mass, not the light emission, but it is still a confusing wording.
It’s not a new form of dark matter… DM is an artefact, with multiple hypotheses, and nothing close to proven although quite a few ideas have been ruled out.
The poorly written article, and linked research paper, talks about a proposed particle, that their calculations show _may_ explain a couple of observed galactic phenomena. Ok. They then link that proposed particle as an explanation for the dark matter artefact… And I struggle to see a hard justification for that, other than it sounds cool.
I only skim read it, but so many questions…
– calculations to justify that the proposed particle actually will match the dark matter observations?
– _why_ doesn’t this need particle interact with anything except gravity?
– why hasn’t the particle already been observed in our earthly colliders, if it is sub GeV as they propose?