Related terms:
cmb
hubble
galaxies
messier
spiral arms
dark matter
cosmic
stellar
rotation curve
spiral nebulae
spiral
milky way
milky way galaxy
andromeda galaxy
globular cluster
galactic
elliptical galaxy
big bang
proposed the milky way
observations
gravitational
scale
constellation
universe
Wikipedia sources:
Large-scale structure of the cosmos
Galaxy
Dark energy
Colorado State University
Kardashev scale
Milky Way
Context for words:
supercluster
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