Assertion: terrestrial planet's core | /r/HasProperty | mantle
Facets:
value: with a thicker upper mantle
type: OTHER
value: compared to the earth
type: OTHER
value: with lower densities
type: OTHER
Source sentences:
text: Also like Uranus, its interior is differentiated between a dense core consisting of silicates and metals, a mantle consisting of water, ammonia and methane ices, and an atmosphere consisting of hydrogen, helium, and methane gas.
text: Effects near the core / mantle boundary
text: We can't be certain what Venus is like, but if somewhat similar to the Earth, it is unlikely that the size of the core differs (in comparison to the overall size of the planet) by more than a few percent, so most models of Venus have a core which is close to 55% of the size of the planet, and a mantle which is close to 45% of the size of the planet (albeit with lower densities throughout and a thicker upper mantle, compared to the Earth).
text: Except for Mercury, Earth has the highest core/mantle ratio, followed by slightly lower values for Venus and Mars.