Astronomy Basics
Astronomy is the study of everything in the Universe beyond Earth's atmosphere. That includes objects we can see with our naked eyes, like the Moon, planets, and stars. It also includes objects we can only see with telescopes or binoculars, like distant galaxies and nebulae. But it doesn’t take much skill or equipment to get started with stargazing or amateur astronomy, and you can do it almost anywhere. Here you'll learn all the essential things about astronomy that will help you to pave the way into the world of stargazing.
Spring Equinox 2026: When Is the First Day of Spring in the Southern Hemisphere?
When does spring start in 2026? In the Southern Hemisphere, it begins on September 23, 2026, at 00:06 GMT. See exact times for Australia, New Zealand, South America, and more.
First Day of Autumn 2026: Autumn (Fall) Equinox Date & Exact Time
When does autumn begin in 2026? Why aren’t day and night truly equal on the fall equinox? And why doesn’t it always fall on the same date? Find out here!
What Is an Equinox: Definition & Next Equinox Dates 2026
Get to know equinoxes! Find out when the next equinox will be in 2026, why day and night are nearly equal at an equinox, and how it marks the change of seasons.
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.
Zodiacal Light (False Dawn/False Dusk): Definition + Best Time and Where to Look
Don’t miss a chance to see the mysterious zodiacal light stretching from the horizon after dusk or before dawn. Explore it now with our article!
What Is Retrograde Motion? Which Planets Are Retrograde Right Now (March 2026)
Learn what retrograde means, see which planets are retrograde right now, and get an easy way to observe retrograde loops.
Can You Tell an Equinox From a Solstice?
Only 10% of people can get the top score in this tricky quiz about equinoxes and solstices!🌝🌏 Test your knowledge and try to join the elite few!
Equinox in Pictures: Astronomical Spring and Autumn Explained
Discover the science behind the equinoxes with this infographic! Learn about the changing of seasons and the balance between day and night.
March Equinox Explained: 7 Facts in Pictures
Discover the March Equinox in a nutshell with our handy infographic! We've compiled some fascinating facts about this astronomical event just for you. 🌸🔍
Lunar Eclipses Guide: What Does a Lunar Eclipse Look Like, and How Often Does It Happen?
What causes lunar eclipses? How often do they happen? When is the next one? Get answers to these and other questions from our article.