Black holes could be a key to understanding the universe, but they remain shrouded in mystery. So what are black holes—and how do scientists detect them?<br /><br />00:00 - The mystery of black holes<br />00:39 - What is a black hole?<br />01:54 - What are the different types of black holes?<br />03:12 - Can anything escape a black hole?<br />04:52 - How do scientists detect black holes?<br />06:27 - How did scientists create a real image of a black hole?<br />07:35 - Why black holes appear to defy physics<br />08:57 - Why are black holes important? <br /><br />Sign up to our weekly science newsletter to keep up to date: https://econ.st/3P2AKGh<br /><br />Watch our previous film in The Essentials series about whether alien life exists: https://econ.st/3P3sBRS <br /><br />The James Webb Space Telescope opens for business: https://econ.st/3nU3ntA <br /><br />How to take a picture of a black hole https://econ.st/3bHJa7z <br /><br />How did astronomers prove black holes exist?<br />https://econ.st/3OWPRku <br /><br />How photographing a black hole earned the Nobel prize: <br />https://econ.st/3bMPwCG <br /><br />Listen to Babbage, The Economist’s podcast on science and technology: https://econ.st/3IekEXX <br /><br />Find all of our science and technology coverage: https://econ.st/3yIPVPK
