Most scientists think that everything that we know and experience began with the Big Bang, 14 billion years ago. But how can ...

The most precise measurement of the expansion rate ever made suggests an unknown force may be affecting the universe.

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 universe is approaching the midpoint of its 33-billion-year lifespan, a Cornell physicist calculates with new data from dark-energy observatories. After expanding to its peak size about 11 billion ...

It will be a view unlike any other — completely invisible, exceptionally quiet and utterly transformative. When you purchase through links on our site, we may earn an affiliate commission. Here’s how ...

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 ...

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 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 ...

A new study suggests that a mirror universe may have formed alongside ours in the Big Bang, preserving laws of physics that ...

In this video, we journey to the end of time to explore how the death of our Universe could lead to the birth of another. Key ...

According to The Conversation, a new study published in Physical Review D challenges the common idea that the Big Bang was the start of everything. Instead, researchers suggest it might have been a ...

Early galaxies were star-forming machines, furiously gobbling up gas and spitting out stars. A new model helps explain why things were so different back then.