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 ...

This video explains how scientists estimate the size of the observable universe, what “radius” means in cosmology, and why the universe may extend far beyond what we can see. Golden Globes 2026: The ...

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 ...