The dark energy pushing our universe apart may not be what it seems, scientists say

Astronomers know that the universe is being pushed apart at an accelerating rate.

They theorize that a powerful, constant force is at play, one that fits nicely with the main mathematical model.

Dark energy is so vast it is thought to make up nearly 70% of the universe.

Astronomers say they need more data to overturn a theory that seemed to fit together so well.