Curious Kids[1] is a series for children of all ages. If you have a question you’d like an expert to answer, send it to This email address is being protected from spambots. You need JavaScript enabled to view it.[2].Why do some planets have moons and some don’t? – Siddharth, age 6, Texas On Earth, you can look up at night and see the Moon shining bright from hundreds of thousands of
Curious Kids[1] is a series for children of all ages. If you have a question you’d like an expert to answer, send it to...