http://www.foxnews.com/tech/2018/02/...ace-apart.html

It can tear a hole in space?? Huh??

The idea is to achieve a phenomenon known as "breaking the vacuum", whereby electrons are torn away from positrons (their antimatter counterparts) in the empty vacuum of space.
So is space an empty vacuum or not?? If it is, then how are there electrons in it? Wouldn't that make it not-empty??