Dark matter, dark energy and unexplored mysteries

All atoms, stars, planets, trees, rocks, people, animals make up less than 5% of the known universe. About 70% is dark energy and 25% is dark matter. Today, even though dark matter and dark energy exist, we don't have any clues about them.

1. 9 amazing facts about the universe amaze you
2. The 9 biggest mysteries of modern physics make scientists headaches (Part 1)
3. The 9 biggest mysteries of modern physics make scientists headaches (Part 2)

So, people know nothing about dark matter and dark energy, an important component that makes up most of the structure of the universe. Check out the video below to find out!