Why We Have Never Seen the Milky Way We Live In

Nobody has ever taken a photograph of the Milky Way from the outside. The famous spiral image you’ve seen in textbooks, museums and online is a scientific reconstruction created from measurements made while we are trapped inside the galaxy we are trying to map. And for more than a century, that perspective caused astronomers to get some surprisingly basic things wrong. In this documentary, we follow the long attempt to discover what the Milky Way actually looks like: from William and Caroline Herschel’s first star counts, to Harlow Shapley’s discovery that the Sun is nowhere near the galactic center, to the interstellar dust that hid most of our galaxy from visible-light telescopes. Then came radio astronomy, infrared telescopes like Spitzer, and ESA’s Gaia mission — allowing astronomers to map the Milky Way using not only light, but the motions of billions of stars. What emerged is much messier than the clean spiral shown in illustrations. Astronomers still debate how many major spiral arms the Milky Way has. The galactic disc is warped. Nearby star-forming regions ride an enormous wave. And evidence suggests ancient collisions may have dramatically reshaped — and perhaps even flipped — our galaxy. We live inside the Milky Way. But reconstructing what our own home actually looks like remains one of astronomy’s strangest mapping problems. -- DISCUSSIONS & SOCIAL MEDIA Commercial Purposes: [email protected] Tik Tok: https://www.tiktok.com/@insanecuriosity Reddit: https://www.reddit.com/user/insanecuriosity Instagram: https://instagram.com/insanecuriositythereal Twitter: https://twitter.com/insanecurio Facebook: https://facebook.com/InsaneCuriosity Linkedin: https://www.linkedin.com/in/insane-curiosity-46b928277/ Our Website: https://insanecuriosity.com/ -- Credits: Ron Miller, Mark A. Garlick / MarkGarlick.com ,Elon Musk/SpaceX/ Flickr https://app.envato.com/music / https://artlist.io/ -- 0:00 Nobody Has Ever Seen the Milky Way 0:43 The Famous Image Is a Painting 1:39 Why We Can’t Take the Real Photo 2:49 The First Map Was Completely Wrong 5:03 Why Astronomers Put Us at the Center 6:41 Finding the Real Galactic Center 8:20 The Dust That Fooled Everyone 10:40 How Radio Broke Through the Wall 11:39 Seeing the Galaxy in Infrared 12:31 Mapping the Milky Way by Motion 13:54 How Many Arms Does It Really Have? 14:56 Our Galaxy Isn’t Even Flat 15:49 The 8,800-Light-Year Wave Next Door 17:00 The Collision That May Have Flipped the Milky Way 18:36 What We Actually Know 19:24 A Fossil From the Young Milky Way 20:38 The Galaxy We’re Eating 21:43 The Map Is About to Change Again -- #insanecuriosity #milkyway #astronomydocumentary