Home > Space > What Is The Universe Expanding Into? What Is The Universe Expanding Into? Space Share on Pinterest We often hear that our universe is expanding and the galaxies are moving further away from one another. But if the universe is expanding, then what is it expanding into? Share on Pinterest Related Posts Five Real Possibilities For Traveling To Other Solar Systems Live! – View Of Earth From The Space Station How Dangerous Is Deep Space Travel? How Big Is The Universe? 5 Theories About The Universe That Will Blow Your Mind