Planets & Moons
There are 8 officially recognized Solar System planets: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Most of them, except Mercury and Venus, have their own natural satellites, commonly called “moons.” Some of the dwarf planets, like Pluto and Eris, have moons, too. Here, you’ll learn the best dates to observe planets in the sky and find everything you need to know about planets, dwarf planets, and natural satellites. When you learn enough, test your astronomy skills with our challenging quizzes!
Bright “Star” Next to Moon: What Planet Is Near the Moon Tonight?
What is that bright dot shining near the Moon tonight? Find out about stars and planets that can be seen next to our natural satellite this month!
Planet Uranus: The Coldest Planet
What is Uranus? Learn facts about its size, rings, moons, rotation, and cold atmosphere. Also, explore Uranus’ upcoming events!
Planet Saturn: How to Find Saturn in the Sky in 2026?
How many rings does Saturn have? Where is Saturn tonight in the sky? Find answers to these and other most common questions about Saturn in our article.
Past Moon-Planet Conjunctions 2026
Learn about conjunctions of the Moon and planets that occurred in 2026. A link for the upcoming conjunctions list is included.
Explore the Red Planet: All the Must-Know Facts About Mars
Why is Mars red? What’s the gravity on Mars? Read this article to get answers to these and many other questions and learn more about the Red Planet.
All About Pluto: Explore The Peculiar Dwarf Planet
How far is Pluto from the Earth? Why isn’t Pluto a planet? Read this article to get answers to these and many other questions!
Astronomical Conjunction of Planets 2026: When to See 2 Planets Close Together?
See two planets side by side! Discover rare planetary events in 2026. Get dates, times, and viewing tips now!
Facts About Jupiter: The Biggest Planet in the Solar System
Bright Jupiter is known for its enormous size, many moons, and mysterious Great Red Spot. Read our article to uncover all the secrets of the giant planet.
Planetary Oppositions 2026: Next Up Is Neptune
The best time to view most planets is at the astronomical opposition. Find out what it means and when to see the upcoming oppositions.
Galilean Moons: A Complete Guide to the Four Largest Moons of Jupiter
What’s the story behind discovering Jupiter’s moons? You won’t make the same mistake Galileo did while observing them if you read this article. 🔭