Scientists predict up to 100 invisible galaxies may orbit the Milky Way, hiding just beyond our current detection limits.

The new images of the early universe, ... we’re seeing the polarization of light in high resolution. ... “We’ve measured more precisely that the observable universe extends almost 50 ...

The observable universe is just a fraction of the vast cosmos, limited by the speed of light and the age of the universe. But what lies beyond this visible horizon? In this video, we delve into ...

However, the observable universe extends farther than 13.8 billion light-years in every direction because, for all the time space has existed, it’s also been expanding.

Understanding the shape of the universe is notoriously difficult. When it comes to local geometry, scientists are relatively certain that the observable universe is flat—or, at least nearly flat ...

With an estimated 200 billion trillion stars in the observable universe, the existence of other technological species is highly likely, potentially even within our Milky Way galaxy.

It's estimated that there are around 10 82 atoms in the observable universe. With each element in the periodic table containing at least one electron, you can therefore safely assume there are at ...