What exactly do they mean by “one dimensional”? I know that’s not factually correct, but are we talking about threads that are only a single atom thick (in which case how would you even detect that in space?), or is it just hyperbole due to the length being extremely greater than the width? Maybe I missed it, but I didn’t see anything in the article actually giving an estimate of the average width of these threads, so maybe they’re just so narrow that we can’t really measure them from this distance?