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

Relax, it’s only happening in theoretical physics—at least for now.

The surface of Earth is finite. We can measure it. If it was expanding, then its size would grow with time. And once again, good ol' Earth helps us understand what the universe might be doing beyond ...