Not necessarily. This great video from PBS Spacetime is a fairly detailed, but good for a 'nearly' layman on the findings in depth. https://www.youtube.com/watc

Not necessarily. This great video from PBS Spacetime is a fairly detailed, but good for a 'nearly' layman on the findings in depth. https://www.youtube.com/watch?v=5t0jaE--l0Y https://www.youtube.com/watch?v=5t0jaE--l0Y A discussion on how a galaxy could be missing dark matter - or how it could be separated from a galaxy