‘One of the greatest damn mysteries of physics’

There’s an awkward, irksome problem with our understanding of nature’s laws which physicists have been trying to explain for decades. It’s about electromagnetism, the law of how atoms and light interact, which explains everything from why you don’t fall through the floor to why the sky is blue.

‘One of the greatest damn mysteries of physics’: we studied distant suns in the most precise astronomical test of electromagnetism yet