A solar conjunction occurs as Venus' orbit carries it into alignment with the sun and Earth. Venus will align with the sun ...

A great pair of binoculars is a must for any serious birder, from compact binos for popping in your bag to image-stabilized models — find your next pair. When you purchase through links on our site, ...

Discover the highlights of the Northern Hemisphere’s winter night sky with our guide to the top celestial sights to enjoy through binoculars between November 2025 and January 2026. Winter in the ...

Comet 3I/ATLAS was discovered on July 1, 2025, by the NASA-funded ATLAS telescope in Rio Hurtado, Chile and was quickly ...

Humans and some other animals use their two eyes in coordination to support binocular depth perception. The left and right eyes obtain images of the visual scene from slightly different viewpoints, ...

Abstract: The Luneburg lens is of significant interest for microwave and optical devices due to its wide-angle focusing properties. However, the inhomogeneous refractive index of the lens is ...

Binoculars with built-in cameras don’t just bring distant subjects closer — they allow you to capture the moment as it unfolds. Instead of balancing a phone against an eyepiece or wrestling with a ...

Abstract: We have recently developed a self-collimating SPECT (SC-SPECT) system, where multiple sparsescintillator detector layers are used to replace part of the mechanical collimator for photon ...