Question
A 2021 paper from Peng Wang et al. suggests that these objects rotate. For 10 points each:
[10h] Name these enormous cosmological structures exemplified by the Pisces–Cetus Supercluster Complex and the Hercules–Corona Borealis Great Wall.
ANSWER: galactic filaments [or galaxy filaments or cosmic filaments]
[10m] The existence of structures as large as galactic filaments challenges the cosmological principle’s claim that the universe is isotropic and has this property. The CMB cold spot is a counterexample to this property for the temperature of the universe.
ANSWER: homogeneous [or homogeneity]
[10e] The size of galactic filaments can be expressed in megaparsecs, which are a unit for this quantity that can also be measured in astronomical units.
ANSWER: length [or distance]
<David Bass, Science - Astronomy> ~21310~ <Editor: David Bass>