Scientists have long known that light can sometimes appear to exit a material before entering it—an effect dismissed as an illusion caused by how waves are distorted by matter. Now, researchers at the ...

According to scientists at the University of Toronto, “negative time”, which was previously considered an illusion, has turned out to be measurable through quantum mechanics. This discovery contests ...

Scientists have long been fascinated by how light interacts with matter. At the heart of this curiosity are photons—particles that carry light—as they pass through different materials. When photons ...