Buying Guides
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Best Eyepieces for Each Planet
The focal length to use for Mercury through Neptune, planet by planet.
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Best Telescopes for 10-Year-Olds
Easy, sturdy scopes for kids ten to fourteen who are ready for the real thing.
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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
A constellation is a group of stars that form some kind of shape in the sky. The old civilizations assigned…
Updated for 2022 It is always at a very early age when people develop an interest in watching the sky…
What are comets? Comets are cosmic objects made of rock, ice, dust, and frozen gases. Comets travel around the Sun…
Sally Ride was an American astronaut who is famous because in 1983 she became the first American woman in space.…
Telescopes are a popular purchase both for yourself and as a gift for someone else. The problem is if you…
Orion is one of the most famous and recognizable constellations in the sky. It is visible from most parts of…
When you are just getting started with astronomy and you are thinking about getting your first telescope you will hear…
For someone that is not familiar with the night sky, it can be counterintuitive to think of planets as objects…
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