High Five Facts - Universe

The video presents five fascinating facts about the universe. It explains that the universe is flat due to its zero curvature, is approximately 13.7 billion years old, and contains more stars than grains of sand on Earth. The universe has no center because it is constantly expanding since the Big Bang. Additionally, there is no sound in the universe as it is a vacuum, lacking air for sound waves to travel through.

What new insight or understanding did you gain from this video?