TED-Ed

Check out all of TED-Ed's book recommendations: http://ed.ted.com/books Check out Neil deGrasse Tyson's "Astrophysics for People in a Hurry": https://shop.ed.ted.com/collections/ted-ed-book-recommendations/products/astrophysics-for-people-in-a-hurry View full lesson: https://ed.ted.com/lessons/what-are-gravitational-waves-amber-l-stuver In September 2015, scientists witnessed something never seen before: two black holes colliding. Both about 30 times as big as our Sun, they had been orbiting each other for millions of years. A fraction of a second before the crash, they sent a vibration across the universe at the speed of light that was picked up by the LIGO detector. So what are these ripples in space? Amber L. Stuver explains. Lesson by Amber L. Stuver, directed by Eoin Duffy. Thank you so much to our patrons for your support! Without you this video would not be possible. Be Owusu, Susan Herder, Yalda A., Savannah Scheelings, Prasanth Mathialagan, Javier Rojas Dominguez, Yanira Santamaria, Dawn Jordan, Monica Grace Ward, Daniel Mardale, Constantin Salagor, Activated Classroom Teaching, Kevin Wong, Umar Farooq, Goh Xiang Ting Diana, Mohammad Khory, Dmitry Neverov, Tushar Sharma, Mukamik, Tsz Lung, Cristóbal Medina Moenne. Check out our Patreon page here: https://www.patreon.com/teded