Dark energy may be the most mysterious substance ever proposed, but many scientists are certain it exists. Why?

The Standard Model of our universe doesn’t match the evidence, in part because of dark energy, a ghostly force pushing the ...

For a generation, cosmologists have treated dark energy as a fixed backdrop, a steady pressure stretching space faster and ...

A mysterious force called Dark Energy might be changing, in a way that challenges our current understanding of the nature of ...

The rapid acceleration of the universe’s expansion continues to challenge our understanding of fundamental physics. Why the ...

Studies suggest that the universe's expansion is decelerating — but what could that mean for the future of the cosmos?

Nearly everything in the universe is made of mysterious dark matter and dark energy, yet we can’t see either of them directly ...

The scientists realized that these supernovae weren’t as nearby as they had thought, so they had zipped away from Earth quicker than expected. “These observations led scientists to ultimately conclude ...

A team of South Korean researchers have found that a mysterious force known as dark energy is changing our Universe in a way ...

Contrary to popular belief, our universe may not be constantly expanding after all. A groundbreaking study by South Korean ...

Distant, ancient galaxies are giving scientists more hints that a mysterious force called dark energy may not be what they thought.See an excerpt of an interview in the video aboveAstronomers know ...