Space Science Wizard Nebula (NGC 7380): How to Find, See, and Photograph It The Wizard Nebula (NGC 7380) is a star-forming cloud 7,200 light-years away in Cepheus. Learn where to find it and how to photograph it — 2026 guide.
Space Science What Is Cosmology? The Science of the Whole Universe, Explained Cosmology is the science of the universe as a whole. This beginner-friendly guide explains the Big Bang, the expanding universe, the cosmic microwave background, dark matter and dark energy.
Astrophotography Fundamentals Plate Solving and Framing: Find and Center Any Target Plate solving tells your mount where it's pointing so it can center any target. Learn how plate solving works, the best free tools, and how to frame shots.
Space Science What Is Astrometry? A Complete Guide to Measuring the Stars Astrometry is how astronomers measure the exact positions, distances and motions of stars. See how parallax, proper motion, Gaia and plate solving work.
Space Science What Is a Star? A Plain-English Guide to How Stars Work What is a star? A clear guide to what stars are made of, how they form, their life cycle, the main types, and how many stars fill the universe.
Space Science What Is a Nebula? A Stargazer's Guide to the Clouds That Build Stars A clear guide to what a nebula is — the types, how they form, famous examples, and how astrophotographers capture these cosmic clouds of gas and dust.
Solar System What Happens If an Asteroid Hits Earth? What happens if an asteroid hits Earth? Impact effects by size, historical impacts, how likely it is, and how NASA planetary defense protects us in 2026.
Solar System Eris: The Dwarf Planet That Demoted Pluto Eris is the dwarf planet whose discovery demoted Pluto. Learn about Eris vs Pluto, its moon Dysnomia, and why it redefined what counts as a planet.
Solar System Meteor Showers: A Complete Stargazer Guide Meteor showers 2026 calendar: peak dates for the Perseids, Geminids and more, what causes meteor showers, and how to watch and photograph them.
Solar System The Moons of the Solar System How many moons are in the solar system? Explore the largest moons, ocean worlds like Europa, volcanic Io, and which moons you can see through a telescope.
Solar System The Sun: Our Star Explained The Sun explained: what our star is made of, sunspots and Solar Cycle 25, and how to observe and photograph the Sun safely in 2026. Never look without a filter.
Planets Mercury: The Smallest Planet Mercury is the smallest planet and closest to the Sun. Learn key Mercury facts, 2026 greatest elongation dates, the BepiColombo mission, and how to see it.
