According to one researcher, this observation "promises new insights into the evolution of the early universe." ...

The universe’s expansion makes cosmic distance far less intuitive than simply measuring how long light has traveled.

How far does the universe really go? As NASA and the world's most powerful telescopes peer toward the edge of the observable universe, they uncover galaxies, ancient light, and mysteries that continue ...

Researchers figured this out by looking at the largest map of the known universe observed by the Dark Energy Spectroscopic ...

An artist's impression of the size and location of the Big Ring (blue) and Giant Arc (red) in the sky. (University of Central Lancashire/Stellarium) A massive structure detected in the distant ...

The portion of the cosmos from which light has had time to reach Earth spans roughly 92 to 93 billion light-years in diameter, a figure that dwarfs the 13.8-billion-year age of the universe and ...

The Big Bang may not mark the absolute beginning of everything. A controversial cosmological model instead treats it as a boundary, with our universe on one side and a time-reversed anti-universe on ...

The Big Bang may not mark the absolute beginning of everything. A controversial cosmological model instead treats it as a ...

Astronomers using W. M. Keck Observatory atop Mauna Kea on the Big Island confirmed two-thirds — or 21 of 31 — of the most ...

Fast radio bursts could become the most versatile tools in cosmology: astronomer Manisha Caleb argues in a new preprint that ...

On a clear night, the sky may seem peaceful and empty. Yet beyond the stars visible to our eyes lies a universe so vast that it is difficult to imagine. Our gal ...

What if time doesn't actually exist until something changes? Scientists at the University of Birmingham created a tiny "mini ...