dark matter is not a theory

dark matter is not a theory.

I tried to increase the sound on this---let me know how it went? I keep getting comments that my sound is too low but it always sounds fine on my devices.


Professor David Weinberg dark matter rap:
https://www.astronomy.ohio-state.edu/...

Professor Adam Hincks visualization link:
https://adh-sj.info/bao_cmb.php

Job Geheniau’s dark matter measurement:
https://www.rtl-sdr.com/wp-content/up...