MICHIGAN, USA — You may have seen it during the overnight hours. A natural phenomenon has been spotted across West Michigan as arctic air funnels through the area-- light pillars. Light pillars are a ...

Earth's passage through the plane of Saturn's rings, occurring roughly every 15 years, causes the rings to appear nearly edge-on. The next such event in March 2025 will be poorly observable due to ...

Optical illusions occur naturally in different habitats and conditions across the world. Cloud formations can sometimes make it seem like there's an ocean or a UFO in the sky. Whether it is salt flats ...

MISSOULA, Mont. — While up in the mountains, have you ever looked down on a cloud or fog bank below and seen concentric rings of light surrounding your shadow? A viewer recently shared a photo of this ...

Quantitative phase imaging (QPI) is a microscopy technique widely used to investigate cells and tissues. Even though first biomedical applications based on QPI have been developed, both acquisition ...

Optical fibers transmit information at the speed of light over thousands of kilometers. These properties have enabled their ...

Everyone loves an optical illusion — even if they leave us completely stumped — and they're all around us in the natural world. From an underwater waterfall in the Indian Ocean to a surrealist scene ...