I’m not sure if we can detect that bend
I guess we could, if only we knew where our dark matter is :)
Comment on If dark matter doesn't emit, absorb, or reflect light, what happens when light hits it?
givesomefucks@lemmy.world 3 days agoYeah, it just doesn’t hit it.
Gravity does work with dark matter tho, so we can’t really say “unaffected” because the dark matter would still bend the light due to gravity. I’m not sure if we can detect that bend, but I remember something relatively recently about how dark matter can interact via gravity, and I’m assuming bending light would have been the easiest way to test that.
Zwuzelmaus@feddit.org 3 days ago
sbeak@sopuli.xyz 1 day ago
I remember reading something somewhere that the gravitational lensing of dark matter (where light bends around and you can see behind) was evidence for dark matter being a thing that exists. Dark matter could really be anything though (ones I have heard about include WIMPs, primordial black holes, and supersymmetric particles like gravitinos), and we simply don’t have enough experimental data to know what it is. We know it exists as we see its gravitational effects in galaxies and such, but that’s about it.