Interstellar Magnetic Fields
from the attached:
"There are very limited ways to study magnetic fields in space," explains Alexandre Lazarian, a UW–Madison professor of astronomy and an authority on the interstellar medium, the seemingly empty spaces between the stars that are, in fact, rich in matter and feature twisted, folded and tangled magnetic fields composed of fully or partially ionized plasmas entrained on magnetic fields. "Our understanding of all these (astrophysical) processes suffers from our poor knowledge of magnetic fields."
'plasmas entrained on magnetic fields' sounds awkward, vague as to which drives the other.
However now 'we' know interstellar plasma is linked to interstellar magnetic fields in the ISM.
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