PBS Space Time

Deciphering The Vast Scale of the Universe - STELLAR (2019x23)

Udgivelsesdato: Jul 25, 2019

One of the fundamental questions humanity has always asked is how big is our Universe? For much of human history, people believed that Planet Earth was the very center of the entire universe. And Earth is pretty big. But compared the rest of the universe, we are infinitesimally small.