The Nine Planets Hello, and welcome to the "Nine Planets" section of The Space Place. If you have homework on the planets or just like to read about the planets, your in the right place. I have information on all nine planets. Do you need the mass, diameter, discoverers, surface temperature, density, and distances for all of the nine planets?? I've got it. Everything is here. And if your looking for information that I do not have listed, e-mail me. I'll find that info and send to you. It's my pleasure to help. So, don't bother to ask. Enjoy all the information I have to give on THE NINE PLANETS. INFORMATION ON... Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune Pluto