Light

Exploring light as one of the most important and mysterious features of reality. These posts look at light as both a wave and a particle, its role in vision, colour, energy, time, relativity, astronomy, and quantum physics. From sunlight and starlight to lasers, photons, shadows, speed limits, and the way light carries information across the universe, this category examines how light helps reveal the structure of nature and why it sits at the centre of so many scientific questions.