Buying Guides
-
Budget Telescopes That Are Sneakily Powerful
Five low-cost scopes that perform well above their price.
-
Best Refractor Telescopes for Beginners
Low-maintenance scopes that are ready to use the night they arrive.
-
Best Telescopes for Galaxies
Big-aperture scopes for galaxies, nebulae and other deep-sky objects.
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 and the moons of Jupiter.
Latest
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…
Sending a spacecraft to the Sun sounds like a contradiction. You point a multi-billion-dollar machine straight at the one object…
TL;DR “Recent comets” can mean two different things: comets newly discovered by astronomers, and comets that are actually worth looking…
Europa is one of the most tempting places in the Solar System to look for life, and NASA has spent…
Black holes are not all the same size, and they don’t all form the same way. The types of black…
Massachusetts has a surprisingly solid astronomy scene for a small state packed with traffic, colleges, and weather that enjoys ruining…
New content!
There is a new one every day.
-
Recently updated
-
