Related terms:
galaxy
star
stellar
galactic
accretion
milky way
galactic disc
central
sagittarius
black hole
believed
astronomers
habitable zone
globular cluster
planetary system
solar system
constellation
galactic habitable zone
supermassive black hole
Wikipedia sources:
Milky Way
Galactic Center
Habitable zone
Rare Earth hypothesis
2012 phenomenon
Supermassive black hole
Context for words:
galactic
center
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