A dark point inside a beam of light should not be much of a traveler. Yet in a new experiment, some of those points appeared ...

Nanyang Technological University, Singapore (NTU Singapore) scientists have used a classic optical phenomenon known as the ...

I learned in October 2022’s Breakthrough that the spikes of stars in high-power photos are called diffraction spikes. Why do they appear as two crosses at 45 degrees to each other? The diffraction ...

Researchers used the Poisson spot effect to create stable optical skyrmions with a laser and disc, simplifying studies for ...

Imperial physicists have recreated the famous double-slit experiment, which showed light behaving as particles and a wave, in time rather than space. The experiment relies on materials that can change ...

Can darkness really travel faster than light? A surprising new physics experiment suggests it can—at least in a very unusual ...

When two black holes merge or two neutron stars collide, gravitational waves can be generated. They spread at the speed of light and cause tiny distortions in space-time. Albert Einstein predicted ...