If a star orbits a black hole, it will appear from a distance to be orbiting empty space. Gaia projects the star’s orbit on a ...

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 ...

"They are everywhere!" A terrifying finding made in a solar system void. The discovery of a record-mass stellar black hole in our galaxy.