The Universe: MASSIVE Black Holes & Countless Wonders *Marathon* | History

We used to think that Earth was at the center of the universe, but now we know we're not even at the center of our own galaxy. See more in this marathon from The Universe. #HISTORY #TheUniverse Find out more about the show and watch full episodes on our site: http://www.history.com/shows/ Don't miss a video! Subscribe NOW: https://www.youtube.com/@HISTORY?sub_confirmation=1 Chapters: 0:00 The Milky Way: Our Galactic Home 45:16 The Mysteries of Time Travel 2:06:00 Parallel Universes: The Multiverse 2:35:08 Alien Worlds: An Intergalactic Safari ABOUT THE HISTORY CHANNEL: The HISTORY® Channel, a division of A+E Global Media, is the premier destination for historical storytelling. From best-in-class documentary events, to a signature slate of industry leading nonfiction series and premium fact-based scripted programming, The HISTORY® Channel serves as the most trustworthy source of informational entertainment in media. FOLLOW HISTORY CHANNEL: Watch Full Episodes: https://www.history.com/videos Sign Up For History Emails: https://www.history.com/emails/sign-up Browse Topical Videos: https://www.history.com/topics Facebook: https://www.facebook.com/HISTORY/ Instagram: https://instagram.com/history TikTok: https://tiktok.com/@history X: https://twitter.com/history YouTube: https://www.youtube.com/@HISTORY Copyright Notice: This video and my YouTube channel contain dialog, music, and images that are property of The HISTORY® Channel. You are authorized to share the video link and channel, and embed this video in your website or others as long as a link back to our YouTube Channel is provided. © 2025 The HISTORY® Channel The Universe: MASSIVE Black Holes & Countless Wonders *Marathon* | History https://www.youtube.com/@HISTORY/