What's the Universe Made Of? Preview
Preview: Season 45 Episode 106 | 28s Video has closed captioning.
The universe is hiding something. In fact, it is hiding a lot. Everything we experience on Earth, the stars and galaxies we see in the cosmos—all the “normal” matter and energy that we understand—make up only 5% of the known universe. Find out how scientists are discovering new secrets about the history of the universe, and why they’re predicting a shocking future.
Problems Playing Video? | Closed Captioning