It was around 1870 when the British physicist John William Strutt, better known as Lord Rayleigh, first found an explanation for why the sky is blue: Blue light from the Sun is scattered the most when ...

Apple today announced refreshed 13- and 15-inch MacBook Air models, now featuring the M4 chip, an upgraded camera, and a new ...

During midday, when the sun is high overhead, sunlight passes through a shorter path in the atmosphere, leading to minimal ...