terrestrial planets
Inner solar system
Terrestrial planets are the rocky, Earth-like planets of the inner solar system: Mercury, Venus, Earth, and Mars.
They have solid surfaces, relatively thin atmospheres, and few or no moons—distinguishing them from the gas giants (Jupiter, Saturn, Uranus, Neptune) farther from the sun.
The term extends to similar rocky planets discovered around other stars.
Messenger god or planet
- VenusLove goddess, or planet
- EarthOur world
- MarsRed planet, war deity
- exoplanetsWorlds orbiting other stars
Kepler · solar system · Ceres · protoplanet · accretion
Oxygen-bound crystal compound
- ironElement twenty-six
- nickelElement twenty-eight, or coin
- basaltFine-grained volcanic stone
- graniteIgneous rock, quartz-rich
crust · mantle · core · density · minerals · regolith · lithosphere · rocky
Life-permitting stellar region
- liquid waterH2O in flowing state
- atmosphereGaseous layer around planets
- biosphereAll life on Earth
- climatePrevailing atmospheric conditions
temperature · oxygen · astrobiology · biosignatures · habitable zone · circumstellar · greenhouse effect · carbon dioxide
Mercury
Messenger god or planet
exoplanets · Kepler · solar system · Ceres · protoplanet · accretion
silicate
Oxygen-bound crystal compound
granite · crust · mantle · core · density · minerals · regolith · lithosphere · rocky · differentiation
Goldilocks zone
Life-permitting stellar region
- liquid waterH2O in flowing state
- atmosphereGaseous layer around planets
- biosphereAll life on Earth
climate · temperature · oxygen · astrobiology · biosignatures · habitable zone · circumstellar · greenhouse effect · carbon dioxide · nitrogen
- planetsEarth, Mars, Jupiter, Saturn, Venus
- solar systemsun, Earth, Mars, Jupiter, Saturn
- planetary scienceatmospheres, differentiation, regolith, gas giants, outgassing
- protoplanetary disksgas giants, planetesimals, protoplanets, accretion, snow line
terrestrial planetsgas giants
Planets of hydrogen, helium
giant planets · ice giants · outer planets · Jupiter · Saturn
terrestrial, planet, terra, terrain, terrace, subterranean, extraterrestrial, territory, territorial