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!
Planet Uranus: The Coldest Planet
What is Uranus? Learn facts about its size, rings, moons, rotation, and cold atmosphere. Also, explore Uranus’ upcoming events!
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!
Calendar of All Astronomical Events 2025
Ready to spend 2025 staring at the sky instead of your phone? We've got all the astronomical events of the year in one place. Check out the dates and times for conjunctions, meteor showers, eclipses, supermoons, equinoxes, solstices, and more.
Planetary Alignments Explained: The Next 6-Planet Parade is on February 28, 2026
The next planetary alignment will take place in February 2026. Six planets — Jupiter, Uranus, Saturn, Neptune, Venus, and Mercury — will align in the evening sky. Find out how to see this unique event!
Venus Facts: Explore the Brightest Planet in The Sky
In August 2025, Venus is perfectly placed for observing and photography! Get to know the planet and learn about upcoming Venus events in this article.
Astronomical Conjunction of Planets 2025: When to See 2 Planets Close Together?
See two planets side by side! Discover rare planetary events in 2025, including the elusive Mercury-Mars conjunction. 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.
How to See the Planets Tonight: Tips For Beginners (No Telescope Needed)
Learn exactly where and when to spot Venus, Jupiter, Saturn & more tonight with our step-by-step guide. No equipment required — perfect for city-dwellers and beginners!
Planet Saturn: How to Find Saturn in the Sky in 2025?
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.
Neptune: The Farthest & Windiest Planet in the Solar System
How big is Neptune? What is Neptune made of? Why is Neptune blue? Read our article and learn curious facts about the outermost planet in the Solar System.