Post #2984371
2026-05-14 14:32 UTC
We have never detected dark matter. Dunno what you're talking about. It's existence was posited because of differences in observed velocities at the edge of galaxies vs what we expected to see.
Replies (3)
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@i_love_FFT@jlai.lu 2026-05-14 16:44
What is your definition of "detected"? If only direct interaction using the EM field is required, then we have never detected anything... There are lots of gravitational lensing images of dark matter, we can even see some structures in its shape and distribution. Check this out: https://en.wikipedia.org/wiki/Bullet_Cluster
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@bjoern_tantau@swg-empire.de 2026-05-14 15:13
Dark matter can be detected through gravitational lensing. Rotation curves was just the first way we detected it.
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@half_built_pyramids@lemmy.world 2026-05-15 01:11
If I look at a glass and I see that it is half empty by looking at the empty part, does that mean I didn't detect anything?