Related terms:
gliese
aurelia
habitable
gas giant
tidal lock
goldilocks
liquid water
earth masses
astrobiology
minimum mass
outer layers
fermi paradox
giant planets
life on earth
microbial life
radial velocity
galactic center
planetary system
extrasolar planet
globular cluster
intelligent life
habitable planets
terrestrial planet
extrasolar planets
inner solar system
orbital eccentricity
rare earth hypothesis
planetary habitability
galactic habitable zone
gravitational microlensing
Wikipedia sources:
Rare Earth hypothesis
Habitable zone
Sun
Planetary habitability
Gliese 581 c
Gliese 581
Water
Super-Earth
Extrasolar planet
Gliese 581 d
Milky Way
Extraterrestrial life
Epsilon Eridani
Proxima Centauri
Formation and evolution of the Solar System
Context for words:
habitable
zone
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