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 ...

Rugged, powerful and designed for the ultimate adventure, these image-stabilized binoculars can keep up with you and then some.

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 ...

This guide is for those just starting to explore the fantastic world of binocular observation. Whether it's stargazing or observing birds from a bird hide, we will walk you through each of the most ...

Whether you’re an avid bird-watcher, an adventurous stargazer, or someone who simply loves the thrill of a live sports event, the right binoculars can elevate your experience. But with so many options ...

Some softness as you move to the edges of the view. I started bird-watching around the age of 0. That’s what happens when your parents are birders. I started using binoculars by age 5, an ancient pair ...

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 ...

I realized the true power of binoculars about seven years ago when I took up birdwatching and received a pair of Nikon Prostaff 3S bins as a Christmas gift. Outfitted with my new optic on a walk at ...

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 ...