These solar binoculars offer 20x magnification for observing sunspots and solar eclipses. Read our in-depth review.

We are at a critical time and supporting climate journalism is more important than ever. Science News and our parent organization, the Society for Science, need your help to strengthen ...

Travel easily with the best small telescopes for observing when going on location or sharing with friends and family: Spot the moon, stars, galaxies and more Whether you're a beginner stargazer or ...

The best compact binoculars are small and lightweight in size, but mighty in optical performance and portability. These are our top pocketable picks. Binoculars are a fantastic way to get a closer ...

Spangenberg and L. M. Field (Elec. Comm., 21, No. 3; 1943) describes and discusses the measured characteristics of a number of electrostatic lenses, giving the characteristic curves of nine ...

The company says the 42-millimeter objective lens diameter makes them ideal for twilight or cloudy days, as well as sunny ones. It incorporates technology that the company says reduces distortion ...

The Hestia has an interesting six-lens patented optical system. I would love to have seen the interior optics, but (wisely) the case is sealed. The objective lens is only 1.2 inches (30 ...

Whether you’re a beginner or a seasoned birder, investing in high-quality lenses can enhance your viewing experience. With spring upon us, now is a great time to get closer to nature with a set ...