Buying Guides
-
Best Telescopes for Teenagers
Real telescopes a teen can set up alone and keep using for years.
-
Best Telescopes Under $500
More aperture and steadier mounts in the serious-upgrade price range.
-
Best 50mm Telescopes
Small, light starter scopes for the Moon and the brightest planets.
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
Reflector telescopes (also referred to as Newtonian or reflecting telescopes) are a great choice for beginners looking to get into…
In this article, we’ll take a look at the characteristics that make Mercury such a unique planet in the Solar…
Many mysteries remain about the origin of our Solar System, but we have a good idea of how and when…
Earth has many characteristics that make it unique among all the other planets in the Solar system. For starters, ours…
The best telescope under $200 is the Celestron StarSense Explorer LT 80AZ. It is an 80mm refractor with a dock…
Stars are one of the key objects in the universe. They emit the light that allows us to perceive all…
If you look at the sky on a night when multiple planets are visible, you will notice they all travel…
It can be hard to visualize how things so big like stars, planets, and even whole galaxies can move through…
New content!
There is a new one every day.
-
Recently updated
-
