Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...
The lunar terminator, the sunset/sunrise line that sweeps across the Moon’s surface as the Moon orbits Earth, travels at a rate of 9.6 mph (15.4 km/h) along our satellite’s equator. Taking the average ...
Binoculars are clearly the greatest invention ever bestowed upon the naturalists of the world. Before binoculars, our knowledge of many birds was vague to nonexistent. Now anyone can pluck distant ...
Spring means it’s time to look up into our night sky and find one of the oldest objects in our galaxy: the M3 Cluster. NASA and other sky experts call this group of ancient stars “a truly distant ...
The practice of using a device to project an image of the Sun is thousands of years old. But if using a pinhole doesn’t give the image quality you want, then try this project. The final image will ...
Get the Celestron TrailSeeker 8x42 for their best price in over a year — a fantastic pair of binoculars for skywatching on the go. When you purchase through links on our site, we may earn an affiliate ...
Canon's 10x32 Image Stabilization (IS) binoculars are ideal for advanced skywatchers and now are retailing for only $899, just in time for Prime Day and the summer sky season. When you purchase ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results