Buying Guides
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Best Barlow Lenses
Double or triple every eyepiece you own. 2x, 3x and 5x picks compared.
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Best Space Books for Kids
28 picks sorted by age, from board books for toddlers to Apollo history for teens.
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Best Reflector Telescopes for Beginners
The most aperture for your money, chosen for a first telescope.
Free Resources
Space Printables
Free PDF quizzes and worksheets for kindergarten to adult, with answer keys.
3D Space Models
Spin real maps of the Moon and planets built from NASA data. Find craters, landing sites, the rings of Saturn, Uranus and Neptune and the moons of Jupiter.
Latest
Most galaxy name lists mix in boys, dogs and fictional characters, then get half the meanings wrong. One popular roundup…
TLDR Sixteen astronauts flew NASA’s Project Gemini. There were ten crewed missions, Gemini 3 through Gemini 12, flown between March…
Table of Contents Biosignatures vs technosignatures The question “what are the signs of alien life?” has two different answers, and…
For most of history, astronomy meant collecting light. Since 2015, it also means feeling the universe shake. Gravitational waves are…
You already own a camera and a tripod, and your Milky Way shots are fine but soft, noisy, or ruined…
Table of Contents TLDR: Pluto’s five moons Pluto has five known moons. In order outward from the dwarf planet, they…
Contents TLDR Louisiana has five planetariums you can reasonably plan a trip around: Baton Rouge, Lafayette, Shreveport, Luling and Ruston.…
Upcoming SpaceX launches with countdowns, local times and official webcasts.
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