Buying Guides
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Best Binoviewers
Look through your telescope with both eyes for sharper, more relaxed views.
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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 Barlow Lenses
Double or triple every eyepiece you own. 2x, 3x and 5x picks compared.
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
Uranus is the third biggest planet in the Solar system. It is so big that you could fit 63 Earth-sized…
Saturn is the second biggest planet in the Solar system. It is so big that you could fit more than…
Jupiter is the biggest planet in the Solar system by far. If you add up all the mass of the…
The distances in the universe are really hard to wrap our heads around. For example, the closest star to our…
Uranus is the second planet that is farthest away from Earth in the Solar system and one of the “ice…
The best tabletop telescope for most people is the Sky-Watcher Heritage 130P. It is a 130mm (5-inch) reflector that shows…
As we get better and better at space exploration, the idea of looking for natural resources outside our planets becomes…
The Moon has always held a special place in our collective imagination. It’s our natural satellite, and its silvery glow…
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