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.

By observing the brightness of distant dying stars, astronomers have long come to believe that the expansion of the universe ...

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

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

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

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

For centuries, cartographers have sought to map Earth’s land masses and seas to better understand the world and their place in it. Now, astrophysicists have taken a major step toward doing the same ...

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

How fast is the universe expanding? How much does matter clump up in our cosmic neighborhood? Scientists use two methods to answer these questions. One involves observing the early cosmos and ...

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 ...

Let’s say you have a baby. Maybe you really do, maybe you don’t. But Dan Scolnic, a cosmologist at the University of Chicago, does have one, and perhaps that's why a hypothetical baby helps him ...