Good telescope that I've used to learn the basics: https://amzn.to/35r1jAk Get a Wonderful Person shirt: https://teespring.com/stores/whatdamath Alternatively, PayPal donations can be sent here: http://paypal.me/whatdamath Hello and welcome! My name is Anton and in this video, we will talk about a brief history of our discovery of Sgr A* black hole from the early days of astronomy to the image we now have Links: https://www.eso.org/public/blog/our-quest-for-sagittarius-a/ https://en.wikipedia.org/wiki/Navy_Precision_Optical_Interferometer https://en.wikipedia.org/wiki/Astronomical_interferometer https://en.wikipedia.org/wiki/Interferometry#Michelson-Morley https://en.wikipedia.org/wiki/Sagittarius_A* https://adsabs.harvard.edu/full/1982ApJ...262..110B https://iopscience.iop.org/article/10.1088/0034-4885/57/5/001 #blackhole #sgra* #astronomy Support this channel on Patreon to help me make this a full time job: https://www.patreon.com/whatdamath Bitcoin/Ethereum to spare? Donate them here to help this channel grow! bc1qnkl3nk0zt7w0xzrgur9pnkcduj7a3xxllcn7d4 or ETH: 0x60f088B10b03115405d313f964BeA93eF0Bd3DbF Space Engine is available for free here: http://spaceengine.org Enjoy and please subscribe. Twitter: https://twitter.com/WhatDaMath Facebook: https://www.facebook.com/whatdamath Twitch: http://www.twitch.tv/whatdamath The hardware used to record these videos: New Camera: https://amzn.to/34DUUlv CPU: https://amzn.to/2LZFQCJ Video Card: https://amzn.to/2M1W26C Motherboard: https://amzn.to/2JYGiQQ RAM: https://amzn.to/2Mwy2t4 PSU: https://amzn.to/2LZcrIH Case: https://amzn.to/2MwJZz4 Microphone: https://amzn.to/2t5jTv0 Mixer: https://amzn.to/2JOL0oF Recording and Editing: https://amzn.to/2LX6uvU Some of the above are affiliate links, meaning I would get a (very small) percentage of the price paid. Thank you to all Patreon supporters of this channel Special thanks also goes to all the wonderful supporters of the channel through YouTube Memberships Images/Videos: EHT Collaboration CC BY 4.0 https://en.wikipedia.org/wiki/Sagittarius_A*#/media/File:EHT_Saggitarius_A_black_hole.tif Saber1983 CC BY SA 3.0 https://en.wikipedia.org/wiki/Karl_Guthe_Jansky#/media/File:Karl_Jansky.jpg http://nrao/AUI%20CC%20BY%203.0%20https://en.wikipedia.org/wiki/Karl_Guthe_Jansky#/media/File:JanskyatAntenna_hi.tif http://nrao/AUI/NSF%20and%20N.E.%20Kassim,%20Naval%20Research%20Laboratory%20CC%20BY%203.0%20https://en.wikipedia.org/wiki/Sagittarius_A#/media/File:Labeled_Map_of_the_Milky_Way_Center.tif Thibaut Paumard CC BY-SA 3.0 https://en.wikipedia.org/wiki/Sagittarius_A#/media/File:SgrAWest_BEAR.jpg http://nasa/CXC/INAF/F.%20Coti%20Zelati%20et%20al.%20https://en.wikipedia.org/wiki/Sagittarius_A*#/media/File:Magnetar-SGR1745-2900-20150515.jpg Hajor CC BY-SA 3.0 https://en.wikipedia.org/wiki/Interferometry#/media/File:USA.NM.VeryLargeArray.02.jpg ALMA (ESO/NAOJ/NRAO)/ J. R. Goicoechea (Instituto de Física Fundamental, CSIC, Spain) CC BY 4.0 https://en.wikipedia.org/wiki/Sagittarius_A*#/media/File:Cloudlets_swarm_around_our_local_supermassive_black_hole.tif Cmglee CC BY-SA 3.0 https://en.wikipedia.org/wiki/Sagittarius_A*#/media/File:Galactic_centre_orbits.svg MPE CC BY SA 3.0 https://en.wikipedia.org/wiki/Reinhard_Genzel#/media/File:Reinhard_Genzel.jpg http://eso/MPE/S.%20Gillessen%20et%20al%20CC%20BY%204.0%20https://en.wikipedia.org/wiki/S2_(star)#/media/File:Eso1622b.jpg Andrea Ghez https://en.wikipedia.org/wiki/S2_(star)#/media/File:SO-102_Orbital_Plot.jpg http://eso/MPE%20CC%20BY%204.0%20https://en.wikipedia.org/wiki/Sagittarius_A*#/media/File:SgrA2018.gif ESO CC BY 4.0 https://en.wikipedia.org/wiki/Sagittarius_A*#/media/File:SgrA2021.gif https://en.wikipedia.org/wiki/File:Simulation_of_gas_cloud_being_ripped_apart_by_the_black_hole_at_the_centre_of_the_Milky_Way.ogv NASA https://en.wikipedia.org/wiki/Sagittarius_A*#/media/File:Pointing_X-ray_Eyes_at_our_Resident_Supermassive_Black_Hole.jpg Cecil et al https://iopscience.iop.org/article/10.3847/1538-4357/ac224f  X-ray (Chandra), Radio (EHT), & IR (Hubble) ehtelescope https://www.youtube.com/watch?v=hMsNd1W_lmE Licenses used: https://creativecommons.org/licenses/by/4.0/ https://creativecommons.org/licenses/by-sa/4.0/ https://creativecommons.org/licenses/by/3.0/ https://creativecommons.org/licenses/by-sa/3.0/ https://creativecommons.org/licenses/by/2.5/ https://creativecommons.org/licenses/by-sa/2.5/ https://creativecommons.org/licenses/by/2.0/ https://creativecommons.org/licenses/by-sa/2.0/ ... https://www.youtube.com/watch?v=_9I_W1jV3yo