Buying Guides
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Space Coffee Table Books
Six big, beautiful space books to leave out for guests.
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Best Eyepieces for Dobsonians
Eyepieces matched to the fast focal ratios of Dobsonian telescopes.
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Best Eyepieces for Each Planet
The focal length to use for Mercury through Neptune, planet by planet.
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 and the moons of Jupiter.
Latest
Utah has more going for it than red rock arches and ski resorts. The state sits at high elevation, far…
Table of Contents Double stars are one of the most underrated targets in amateur astronomy. Not as flashy as nebulae,…
Here’s something the birthday-trivia sites won’t tell you: if you were born in July, you picked one of the worst…
Most “space names for boys” lists bury a dozen real options inside a mixed-gender pile, hand you “Orion” and “Leo,”…
Halley’s Comet swings by every 76 years. That’s the famous one, the one your grandparents and your grandkids both get…
Star color is a thermometer. The cooler a star, the redder it looks; the hotter it burns, the bluer it…
First, a quick disambiguation, because the search results are a mess. If you came here looking for Titania the UK…
First, a terminology fix that trips up almost everyone searching for this: Russia doesn’t send “astronauts” to space. It sends…
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