Which planet is smaller than Earth's core?
The core of planet Earth is actually made up of two core layers. The first is the inner core, this is estimated to have a diameter of around 2,440km. The outer core, surrounding the inner core, is close it 4,532km thick. This gives the total core, both inner and outer, a diameter of about 6,792km in diameter.
Answer and Explanation:
Determining which planet, or planets, would be smaller than Earth's core depends on which definition of core you use and what you consider a planet....
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Learn more about this topic:
from Earth Science 101: Earth ScienceChapter 4 / Lesson 4