Buying Guides
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Best Tabletop Telescopes
Ten compact scopes for planets, galaxies and kids that set up on any table.
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Best Telescopes for Teenagers
Real telescopes a teen can set up alone and keep using for years.
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Best Telescopes for Adults
Serious scopes for grown-up stargazers, from first purchase to upgrade.
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
The market for portable, beginner-friendly telescopes is extremely crowded. It is hard to figure out which model is a better…
Jupiter is the largest planet in the Solar system. As such, it has many characteristics that make it unique amongst…
Pluto was discovered in 1840, but its largest moon, Charon wasn’t discovered until 1978. Ever since Charon was discovered, some…
Telescope mounts are the most often overlooked feature beginners look at when choosing a telescope. But it is a critical…
Mars and Jupiter are like neighbors in a rural area. They might live technically next to each other, but they…
More than 56% of people live in large cities. The U.N. estimates that number will continue to grow in the…
It has been more than five decades since Neil Armstrong and the crew of the Apollo 11 became the first…
The Pinwheel Galaxy is 17 times bigger than our galaxy, the Milky Way. It is one of the most easily…
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