Observations show the universe appears flat, yet its true size and global shape beyond the observable horizon may remain forever unknown.

A novel theory suggests that the current expansion rate of the universe is not fixed, but was in fact quite different in the ...

Here’s what you’ll learn when you read this story: A new paper adjusts an equation that defines our universe in response to recent new data. The cosmological constant, which describes how our universe ...

The question of whether the cosmos goes on forever is no longer just a late night thought experiment, it is a live research problem that cuts to the heart of modern physics. Astrophysicists are using ...

The surface of Earth is finite. We can measure it. If it was expanding, then its size would grow with time. And once again, good ol' Earth helps us understand what the universe might be doing beyond ...

Add Yahoo as a preferred source to see more of our stories on Google. A new study challenges the idea of an ever-expanding universe. (CREDIT: CC BY-SA 4.0) Astrophysicists have presumed for nearly a ...

The fate of the cosmos may be a bit different than previously expected. For years, scientists have talked about how the universe is always expanding — constantly moving outward, never stopping.

The Big Bang theory has dominated our understanding of the universe’s origin for almost 100 years. It describes a moment when all of space, time, and energy were born from a single infinitely dense ...

The universe may not have begun with the Big Bang as is generally thought but from the collapse of a massive black hole, a new theory suggests. Current observations of our universe appear to support ...