Kosmische draden Zimmerman in Space

Lopen er echt één dimensionale draden door ons heelal?
Nanograv:
http://nanograv.org/
Artikel Maarten Verdult:
https://webspace.science.uu.nl/~proko101/MaartenVerdult_cs2.pdf
Cosmic String Interpretation of NANOGrav Pulsar Timing Data:
https://arxiv.org/pdf/2009.06555.pdf
Artikel "More is different":
https://cse-robotics.engr.tamu.edu/dshell/cs689/papers/anderson72more_is_different.pdf
Spacebound:
https://spacebound.nl/
Apollo in real time:
https://apolloinrealtime.org/