Einstein was enthralled by light. Even as a teenager he pondered its properties. At 16, he imagined what it would be like to chase, catch up with, and ride on a light beam. When he started ...

The speed of light (the “c” in Einstein’s E = mc2 ) is 186,282 ... to measure the speed of a light beam. After local municipalities refused to lend him an existing pipeline, Michelson ...

But like all of us, Einstein started out as a kid ... He asked himself questions like, "What would happen if I were riding on a beam of light, and I looked in a mirror?" and then figured out ...

According to Albert Einstein's biography, the theory of relativity stemmed from his dream of riding a beam of light. From ...

Webb captured an Einstein ring formed by a distant galaxy's light bending around a closer one. This rare alignment magnifies hidden galaxies.