The reason it looks empty is because electrons and photons don't interact with the stuff that is there, quark and gluon field fluctuations. It actually takes energy to clear out space and make a ...

Even where there seems to be nothing, something is always happening. "Why empty space isn’t really empty" was originally created and published by Verdict, a GlobalData owned brand.

Empty space is not actually empty – it is filled with tiny flickers of quantum fields. Boosting those flickers with very weak laser light can turn the apparent nothingness into a building block ...