📖 what
What is a terrestrial planet?
SpacePlanets
Quick Answer
A terrestrial planet is a rocky planet with a solid surface, like Mercury, Venus, Earth, and Mars.
The Full Story
Terrestrial planets are the four inner planets of the Solar System and are made mostly of rock and metal. They are smaller and denser than the giant outer planets, and they all have solid surfaces you could, in principle, stand on. Mercury and Mars are the smallest of the four, while Earth is the largest terrestrial planet. Their formation in the hotter inner Solar System helped strip away lighter gases, leaving compact rocky worlds.
Key Facts
1.4 terrestrial planets in the Solar System
2.They are Mercury, Venus, Earth, and Mars
3.They orbit closer to the Sun than the giant planets
YouTube Angle
Suggested video title for this topic:
"Why the inner Solar System made rocky worlds instead of gas giants"