Thursday challenge delivers a straightforward five-letter noun with a single vowel that could challenge players who rely on ...

A particle accelerator was used to create lightning in a bottle by charging a spinning acrylic tube with high-energy ...

A viral video from Jamtland, Sweden, captures a breathtaking 22-degree Sun halo with vivid sun dogs and rainbow arcs.

Bright patches of light, known as sun dogs, appear when sunlight bends through hexagonal ice crystals in high-altitude clouds. These dazzling displays ...

Pilots over the Himalayas sometimes witness three suns due to sundogs, an optical phenomenon caused by sunlight refracting through hexagonal ice crystals in high-altitude clouds. These crystals bend ...

Abstract: Considering that the atmospheric refraction and aberration of light (AOL) bend the path of light and thus affect the geolocation accuracy, a rigorous imaging geometric model with corrections ...

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