Observations show the universe appears flat, yet its true size and global shape beyond the observable horizon may remain forever unknown.

In this video, we explore the vastness of the universe and attempt to quantify its size. We delve into the concepts of cosmic ...

The NASA/ESA/CSA James Webb Space Telescope has topped itself once again, delivering on its promise to push the boundaries of the observable universe closer to cosmic dawn with the confirmation of a ...

In a galaxy far, far away, there lie clues to the cosmic dawn—the first few hundreds of millions of years in our 13.8-billion-year-old universe’s early history. On Wednesday astronomers on announced ...

The observable universe contains so much matter and so many planets that, if it extends infinitely, identical copies of people could exist somewhere else.