Related terms:
ngc
nebulae
hubble
dwarf
galaxia
spiral
redshift
galaxies
stellar
spiral arms
big bang
milky way
two galaxies
dwarf galaxy
cosmology
supercluster
barred spiral
dark matter
telescope
rotation curve
astronomers
spiral galaxies
observatory
andromeda galaxy
globular cluster
milky way galaxy
elliptical galaxy
measurements
spitzer space telescope
general relativity
Wikipedia sources:
Galaxy
Milky Way
Edwin Hubble
Andromeda Galaxy
Physical cosmology
Context for words:
spiral
nebulae
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