This problem has stumped scientists for thousands of years. In this video, we explore: - Why is the sky dark? (00:53) - Is ...

In the first fractions of a second after the Big Bang, the universe ballooned outward at a speed that still defies ...

Depending on how you look at it, the universe might not have an "end," after all. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. This article ...

Animation of the findings by researchers who used time-delay cosmography to independently confirm that the universe’s current ...

How the Universe Works Season 11 is a science documentary series that sheds light on the intricate workings of the universe in an expansive attempt to understand them. In this edition, viewers are ...

Astronomers using the James Webb Space Telescope report that a powerful gamma-ray burst detected in March may have been ...

By studying faint distortions in galaxy shapes across a vast region of sky, scientists probed the hidden structure of the universe. In the standard picture of the universe, nearly everything is hidden ...

Looking Up is transcribed using a combination of AI speech recognition and human editors. It may contain errors. Please check the corresponding audio before quoting in print. Dean Regas: Astronomers ...

The first set of results from a pioneering cosmic-mapping project hints that the repulsive force known as dark energy has changed over 11 billion years, which would alter ideas about how 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 Atacama Cosmology Telescope in Chile has released its final batch of data after 15 years — and it proves that the Hubble ...