This video explores what scientists mean when they talk about the edge of the observable universe. Using real observations ...

Ever since humanity first walked on the Moon, we have dreamed of going farther into space. Planets, stars, and distant galaxies feel like destinations waiting to be reached. But the universe does not ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. After a century of observations spanning the breadth of the cosmos and theoretical insights that ...

Prologue: Cosmology's extraordinary new frontiers -- How far out can we see? : voyage to the edge of the known universe -- How was the universe born? : reavealing the dawn of time -- How far away will ...

We have not been able to detect dark matter yet, even though there are many aspects of the universe that suggest the existence of invisible matter. In one new theory, it is possible that dark matter ...

A century ago, Edwin Hubble began the race to the edge of the cosmos Damond Benningfield In 1930, Albert Einstein met with astronomers (including Edwin Hubble, at Einstein's left, back row) at Mount ...