Common Questions

We frequently get asked questions about our solar system and the planets. We are gradually adding answers to these questions on the site. Let us know if you have any other questions, and also don’t forget to tell us if you think any of the answers can be improved.

Are there any planets still to be found?

Do any planets have any living things?

Do any planets have water on them?

The Apollo 11 Expedition

What different elements are the planets made of?

What is a space rocket made of?

What is the most interesting planet?

What order do the planets go in?

Which is the newest planet?

Which is the oldest planet?