Light has always been described as an elegant partnership of electric and magnetic fields, yet for nearly two centuries physicists treated the magnetic side as a quiet background player. New ...

A: The Sun emits light in virtually every part of the electromagnetic spectrum, albeit some more than others. The sunlight that we see — aptly named visible light — falls into only a very narrow range ...

In 1845, physicist Michael Faraday provided the first direct evidence that electromagnetism and light are related. Now, it turns out that this connection is even stronger than Faraday imagined. In his ...