Buying Guides
-
Best Telescopes for Kids 5 and Under
Whether a young child is ready for a telescope, and which ones to try.
-
Best Budget Telescope Eyepieces
Affordable eyepieces that beat the ones bundled with your scope.
-
Best Telescopes for Viewing Planets
Scopes that show Saturn's rings, Jupiter's bands and the Martian poles.
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
Before any human set foot on the Moon, seven robots had to prove it wouldn’t swallow them. That was the…
“Types of moons” is one of those searches that means three completely different things depending on who’s typing it. Some…
About a third of the planets we’ve found orbiting other stars don’t exist in our solar system at all. They’re…
Most lists of Colorado observatories just dump seven research facilities into a table and call it a day. Useful if…
NASA usually doesn’t fly a brand-new technology on a billion-dollar flagship without testing it first. The New Millennium Program existed…
Nebraska has seven working planetariums, and most of the lists online can’t agree on which ones they are. Some count…
Kentucky doesn’t get the dark-sky press that Utah or West Texas does, but it has a surprisingly deep bench of…
Mercury is the closest planet to the Sun, and it should be easy to visit. It isn’t. In more than…
New content!
There is a new one every day.
-
Recently updated
-
