Watch The Normies react to It's Always Sunny in Philadelphia season 6 episode 7, "Who Got Dee Pregnant?" Weekly schedule: Get EARLY ACCESS or PREMIUM ACCESS to our content as well as other perks on ...

Do you want to know how some of Earth's most fascinating mysteries have been solved by science? Join us and learn about 5 thought-to-be unexplainable mysteries—explained! Hosted by Hank Green.