Question: how big is earth?

Lauren McNaughton answered on 27 Nov 2020:

That’s a really good question! It’s quite hard to visualise just how big the Earth is! If we’re talking maths it has a radius of 6,371 km. It’s the largest terrestrial planet. Terrestrial planets are ones made of rock. And it’s the 5th biggest planet in our solar system! You’d be able to fit about 50 moons inside our Earth if that helps to think about how big it is 🙂