Light does not have mass. It is a form of energy.
Alhazen
One of light's defining characteristics is that it does not have mass; it is instead pure energy. To answer your question, no one discovered it because it has been proven to be false.
the light bulb of corse
Christiaan Huygens
he discovered that light has 7 colours
Sir W. Crookes discovered the Properties of Light in 1879.
UV Light was discovered by Johann Wilhelm Ritter, in 1801
The light bulb was not something that existed and had to be discovered. It was a new thing that was invented.
Sir Frederick William Herschel discovered infrared light in an experiment to measure the temperature of different frequencies of light.
Light does not have mass. It is a form of energy.
planck?
Astronauts
Have come to light means have been discovered.
The word wasn't "discovered", it was coined from Greek: photo for light and synthesis to make. So, making something from light.
Benjamin Franklin
snells