No this isn’t about dogs that are relaxing in the sun. This Weather Kids lesson is about sundogs! Some may say they’re the best friend of atmospheric optics. What are atmospheric optics? Atmospheric ...

Scientists have demonstrated that negative refraction can be achieved using atomic arrays -- without the need for artificially manufactured metamaterials. Scientists have long sought to control light ...

IN such elementary text-books on geometrical optics as I have consulted it has always seemed to me that the writers have found a difficulty in presenting a precise direct proof of the theorem that ...

Scientists have created a new class of laser beam that appears to violate long-held laws of light physics. These new beams, which the team calls “spacetime wave packets,” follow different rules of ...

It’s fire season in the West, which also means it’s the season for some of the most spectacular sunsets of the year. But why? What is it about smoke that makes a sunset more intense? Interestingly, it ...