This video explores what scientists mean when they talk about the edge of the observable universe. Using real observations and established physics, it explains why space appears black beyond a certain ...

The boundary of everything humans can observe stretches roughly 92 billion light-years across, a figure shaped by 13.8 ...

One of the biggest problems astronomers face when they peer into the night sky is that the heavens above appear two-dimensional. And, indeed, shortly after launch, JWST seemed to make those dreams ...

The universe is big, as Douglas Adams would say. The most distant light we can see is the cosmic microwave background (CMB), which has taken more than 13 billion years to reach us. This marks the edge ...