A remarkable new study challenges the findings of Nobel Prize-winning research into how our universe has changed over time.

Cosmology is already a complicated field of study, so switching up the variables is extra rough.

As if dark energy weren't already mysterious and baffling enough, new research suggests that this unknown force may not be ...

Evidence now suggests the universe’s expansion has started to slow, not speed up. The findings imply dark energy is weakening ...

The universe's expansion may actually have started to slow rather than accelerating at an ever-increasing rate as previously ...

The expansion of the universe is already confusing and controversial, with researchers unclear exactly how fast it is going ...

The Big Bang theory has dominated our understanding of the universe’s origin for almost 100 years. It describes a moment when ...

Astronomers are rethinking one of cosmology’s biggest mysteries: dark energy. New findings show that evolving dark energy models, tied to ultra-light axion particles, may better fit the universe’s ...

Astrophysicists at the University of Chicago have developed physics-based models suggesting that dark energy could be changing over time. Dark energy, the mysterious force causing the universe to ...

For the first time, an international research team led by the Shanghai Astronomical Observatory (SHAO) of the Chinese Academy ...

To astronomers in the 1990s, these three facts were self-evident: The universe is expanding; all the matter in the universe is gravitationally attracting all the other matter in the universe; ...

The cracks in cosmology were supposed to take a while to appear. But when the James Webb Space Telescope (JWST) opened its lens last spring, extremely distant yet very bright galaxies immediately ...