Thus the origin of terrestrial planets is now considered to be an almost solved problem.
It is the largest out of the four terrestrial planets in mass and diameter.
Inside, the Earth is similar to the other terrestrial planets.
The process also happens on the surface of Mars and other terrestrial planets.
It is the largest of the four solar terrestrial planets in size and mass.
A young surface all created at the same time is a different situation compared with any of the other terrestrial planets.
Gas giants form quickly, terrestrial planets more slowly, and so on.
Such material is thought to have formed the terrestrial planets.
To what extent can the data in Figure 8.1 be applied to the other terrestrial planets?
And the most important implication: It would be their only opportunity to see directly inside a terrestrial planet.