Buying Guides
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Best Refractor Telescopes for Beginners
Low-maintenance scopes that are ready to use the night they arrive.
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Best Budget Telescope Eyepieces
Affordable eyepieces that beat the ones bundled with your scope.
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Best Telescopes Under $500
More aperture and steadier mounts in the serious-upgrade price range.
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
At the time of writing, about 6,000 planets have been confirmed outside the Solar system. But that’s just the beginning.…
Looking up at the night sky is one of life’s simplest pleasures, and owning a telescope can take this experience…
It is very likely that Mars looked similar to Earth millions of years ago. What is now a red, cold,…
We are all standing on a planet that is floating in space right now. We call it Earth and it…
When the first manned multi-day missions to space were being planned, a challenge presented itself. How were astronauts supposed to…
Saturn is one of the coolest planets in the Solar system. And I’m not just saying that because of how…
The best telescope for most adults is the Sky-Watcher Classic 200P, an 8-inch Dobsonian that gathers about 840 times the…
October 2024, Note about the astronauts currently stuck in space: In June, 2005, astronauts Butch Wilmore and Suni Williams flew…
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