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Our universe is filled with mysterious objects and occurrences that have baffled man since the dawn of time. To this day scientists are scratching their heads over some questions about our universe, and to get you thinking too here are the top 10 mysteries of the universe. Subscribe for more! ► http://bit.ly/BeAmazedSubscribe ◄ Stay updated and vote on new videos by liking our facebook! ► http://bit.ly/BeAmazedFacebook ◄ Get in touch or join the team: http://goo.gl/forms/2lOZyOeL3N SPOILER ALERT!!! We suggest that you watch the video for a more informative and entertaining experience, but a list of the 10 is below: ➢10. The multiverse The multiverse theory states that aside from the universe we are currently in, there exist countless other universes that differ from ours to a varying degree. There are a lot of variations on this theory, but the one that is most accepted is the many worlds theory. Credit: http://fur.ly/0/multiiverse ➢9. Dark Matter Dark matter refers to a type of matter that makes up 84.5% of mass in the observable universe. What's mysterious is that we still do not understand how it came to be, meaning that there might be some unknown force/forces present in the universe that we have yet to discover. ➢8. White holes These are hypothetical regions of space-time which cannot be entered from the outside, but matter and light can escape from within it meaning that they are essentially reverse black holes. In theory white holes would essentially be a gravitational field that has zero mass. Credit: http://fur.ly/0/whiteholes ➢7. Dark Energy Dark energy is an unknown form of energy that is hypothesized to exist all throughout space and is responsible for the acceleration of the universes expansion. Assuming that the standard model of cosmology is correct, dark energy is said to contribute to 68.3% of the total energy present in the observable universe. Credit: http://fur.ly/0/Darkenergy ➢6.Missing Baryons When settling down to calculate the composition of our little universe, scientists found out that 2.5% of baryonic matter is unaccounted for. The leading theory that might actually find out where all the baryons went focuses on analyzing the halo around our galaxy. Credit: http://fur.ly/0/baryons ➢5. The Fermi Paradox This refers to a contradiction between the lack of evidence and the high probability of the existence of alien life. It is estimated that there should be between 1000 and 100 000 000 civilizations in our galaxy alone, but for some reason we have not found them yet. Credit: http://fur.ly/0/fermiparadox ➢4. Why is there more antimatter than matter? This question refers to an old problem in physics called the Baryon asymmetry problem. The problem came to be because there is an imbalance in the number of matter and antimatter in the observable universe that cannot be explained by the standard model of particle physics nor using general relativity. Credit: http://fur.ly/0/antimattermatter ➢3. Universe Reionization The Reionization of the universe refers to the time period when all of the gas in the universe became ionized. It was one of the most important changes in the universe since, during this period the first radiating objects appeared. Credit: http://fur.ly/0/reionisation ➢2. Fermi Bubbles These were first discovered in 2010, are two large bubbles invisible to the human eye located above and below the center of our galaxy. Credit: http://fur.ly/0/fermibubbles ➢1. The end of the universe The ultimate fate of our universe is something long debated and because of that there are a lot of different theories about how our universe will end. The main theory used to study the possible fate of our universe is Einsteins’s theory of general relativity since every possible solution to its equation implies that there exists an ultimate fate of the universe, and there is no good outcome. Credit: http://fur.ly/0/universeend Music Credit: Land of the Dead by Kevin MacLeod is licensed under a Creative Commons Attribution licence (https://creativecommons.org/licenses/by/4.0/). Source: http://incompetech.com/music/royalty-free/?keywords=land+of+the+dead Artist: http://incompetech.com/