There are many planets in the universe some that we know about and some that we dont know about. The universe is so big that we haven't seen it all. That means there could be more planets out there in the universe. We still know a few planets. All of the ones we have discovered have gotten names. Some planets might be big and some might be small. In our solar system there are eight planets which are Earth, Mars, Venus, Saturn, Mercury, Neptune, Uranus, and Jupiter.