Click on the gallery to explore scientific facts, ancient beliefs, and modern mysticism about the planet Mercury. StarsInsider. Fascinating facts you didn't know about the planet Mercury.

These interesting facts will help you learn more about our planet, movies, languages, and animals. You're sure to learn a thing or two from these interesting facts about everything under the sun.

Stunning facts about Venus, Earth's 'sister planet ... moon and Mercury on July 19 and 20. Dean Regas is the astronomer for the Cincinnati Observatory and author of the books "1,000 Facts About ...