What is the planetary core?
Q: What is the planetary core?
A: The planetary core is the innermost layer or layers in a planet.
Q: What are the terrestrial planets?
A: Terrestrial planets are planets with a rocky surface.
Q: What are the cores of terrestrial planets mainly made of?
A: The cores of terrestrial planets are mainly made of iron.
Q: Are the cores of Mars and Venus thought to be completely solid or partially liquid?
A: The cores of Mars and Venus are thought to be completely solid because they don't make a magnetic field.
Q: What are the gas giants?
A: The gas giants are planets with a gaseous outer layer.
Q: Do gas giants have an iron core?
A: Yes, gas giants have a core made of iron.
Q: How does the size of a planetary core compare among planets?
A: The size of a planetary core can vary from each planet or other object. The moon's core is 20% of its radius, but Mercury's core is 75% of its radius.
