BLACK HOLES

You can buy Universe Sandbox 2 here: http://amzn.to/2yJqwU6 Or get a shirt: https://teespring.com/stores/whatdamath Hello and welcome! My name is Anton and in this video, we will talk about blanets - a new hypothesized object that might exist around super massive black holes. Paper: https://arxiv.org/pdf/2007.15198.pdf Support this channel on Patreon to help me make this a full time job: https://www.patreon.com/whatdamath 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 Bitcoins to spare? Donate them here to help this channel grow! 1GFiTKxWyEjAjZv4vsNtWTUmL53HgXBuvu Alternatively, PayPal donations can be sent here: https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=DNKM9SDWU3B3Q&source=url The hardware used to record these videos: 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 Specifically, great thanks to the following members: Morrison Waud Vlad Manshin Mark Teranishi TheHuntress Ralph Spataro Albert B. Cannon Lilith Dawn Greg Lambros adam lee Gabriel Seiffert Henry Spadoni J Carter Jer Silver surfer Konrad Kummli Nick Dolgy UnexpectedBooks.com Mario Rahmani George Williams Shinne Jakub Glos Johann Goergen Jake Salo LS Greger Lyndon Riley Lauren Smith Michael Tiganila Russell Sears Vinod sethi Dave Blair Robert Wyssbrod Randal Masutani Michael Mitsuda Assaf Dar Sagol Liam Moss Timothy Welter MD Barnard Rabenold Gordon Cooper Tracy Burgess Douglas Burns Jayjay Volz Anataine Deva Kai Raphahn Sander Stols Bodo Graßmann Daniel Charles Smith Daniel G. Eugene Sandulenko gary steelman Max McNally Michael Koebel Sergio Ruelas Steven Aiello Victor Julian Castillo xyndicate Honey Suzanne Lyons Olegas Budnik Dale Andrew Darling Niji Peter Hamrak Matthew Lazear Alexander Afanasyev Anton Newman Anton Reed

It remains unclear to scientists how supermassive black holes grow to such enormous proportions. Some of them constantly swallow gas in their surroundings while some suddenly swallow whole stars. But an Israeli-led team has discovered a new way supermassive black holes are fed. Source: Source: https://www.nature.com/articles/s41550-018-0661-3 Support us on Patreon and help Cosmoknowledge become the number one destination for science: https://www.patreon.com/cosmoknowledge SUBSCRIBE ► https://goo.gl/PLLFPz ---- Website ► https://cosmoknowledge.com/ TikTok ► https://www.tiktok.com/@cosmoknowledge Instagram ► https://www.instagram.com/itscosmoknowledge Facebook ► https://facebook.com/cosmoknowledgee Narrated by: Russell Archey https://www.ravonmedia.com/ Graphics & Credits: Space Engine NASA/Goddard Space Flight Center/CI Lab Music: Intrusive Thoughts - Cobby Costa Straight Fuego - Matt Large Thank you to our Patrons: DonPig - Cosmoknowledge brings news from space. We love you, explorers!

You can buy Universe Sandbox 2 here: http://amzn.to/2yJqwU6 Or get a shirt: https://teespring.com/stores/whatdamath Hello and welcome! My name is Anton and in this video, we will talk about black hole coronae, what they are and what we've discovered about them in the last few years. Paper: https://arxiv.org/pdf/2007.07275.pdf Paper 2: https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.125.011101 Support this channel on Patreon to help me make this a full time job: https://www.patreon.com/whatdamath 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 Bitcoins to spare? Donate them here to help this channel grow! 1GFiTKxWyEjAjZv4vsNtWTUmL53HgXBuvu Alternatively, PayPal donations can be sent here: https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=DNKM9SDWU3B3Q&source=url The hardware used to record these videos: 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 Specifically, great thanks to the following members: Morrison Waud Vlad Manshin Mark Teranishi TheHuntress Ralph Spataro Albert B. Cannon Lilith Dawn Greg Lambros adam lee Gabriel Seiffert Henry Spadoni J Carter Jer Silver surfer Konrad Kummli Nick Dolgy UnexpectedBooks.com Mario Rahmani George Williams Shinne Jakub Glos Johann Goergen Jake Salo LS Greger Lyndon Riley Lauren Smith Michael Tiganila Russell Sears Vinod sethi Dave Blair Robert Wyssbrod Randal Masutani Michael Mitsuda Assaf Dar Sagol Liam Moss Timothy Welter MD Barnard Rabenold Gordon Cooper Tracy Burgess Douglas Burns Jayjay Volz Anataine Deva Kai Raphahn Sander Stols Bodo Graßmann Daniel Charles Smith Daniel G. Eugene Sandulenko gary steelman Max McNally Michael Koebel Sergio Ruelas Steven Aiello Victor Julian Castillo xyndicate Honey Suzanne Lyons Olegas Budnik Dale Andrew Darling Niji Peter Hamrak Matthew Lazear Alexander Afanasyev Anton Newman Anton Reed

We can’t see black holes. We can’t see dark matter and we don't know what it's made of. So what if the elusive dark matter is actually made of black holes? Primordial black holes to be precise. This is an idea that has been kicking around the astrophysics world for 30 years or so - but how realistic is it? And how we do we even figure this question out? Macho Collaboration et al. (2000) - https://arxiv.org/abs/astro-ph/0001272 LIGO collaboration (2016) - https://dcc.ligo.org/public/0122/P150914/014/LIGO-P150914_Detection_of_GW150914.pdf Bird et al. (2016) - https://arxiv.org/pdf/1603.00464.pdf Clesse & García-Belledo (2016) - https://arxiv.org/pdf/1603.05234.pdf Munoz et al. (2016) - https://arxiv.org/pdf/1605.00008.pdf --- 🔔 Don't forget to subscribe and click the little bell icon to be notified when I post a new video! ---- 📚 My book: "Space at the speed of light" is now available in the USA & Canada! Order your copy here: https://www.penguinrandomhouse.com/books/635406/space-at-the-speed-of-light-by-dr-becky-smethurst/ 📚 For anywhere else in the world you can buy my book here (Space: 10 Things You Should Know - same book, different title) here: http://bit.ly/SpaceDrBecky --- 🔭 Royal Astronomical Society podcast that I’m co-hosting 😱 🥳- podfollow.com/supermassive --- 📹 Dr. Becky also presents videos on Sixty Symbols: https://www.youtube.com/user/sixtysymbols and Deep Sky Videos: https://www.youtube.com/user/DeepSkyVideos --- 👩🏽‍💻 Dr Becky Smethurst is an astrophysicist researching galaxies and supermassive black holes at Christ Church at the University of Oxford. http://drbecky.uk.com https://rebeccasmethurst.co.uk

Astronomers have discovered one type of growing supermassive black hole masquerading as another, thanks to a suite of telescopes including NASA's Chandra X-ray Observatory. The true identity of these black holes helps solve a long-running mystery in astrophysics. The misidentified black holes are from a survey known as the Chandra Deep Field-South, which is the deepest X-ray image ever taken. Supermassive black holes grow by pulling in surrounding material, which is heated and produces radiation at a wide range of wavelengths including X-rays. Many astronomers think this growth includes a phase, which happened billions of years ago, when a dense cocoon of dust and gas covers most black holes. These cocoons of material are the fuel source that enables the black hole to grow and generate radiation. Based on the current picture held by astronomers many black holes immersed in such a cocoon should exist. However, this type of growing black hole is notoriously difficult to find, and until now the observed number has fallen short of predictions — even in the deepest images. Now a team of astronomers has discovered 28 black holes that were previously misidentified in the Chandra Deep Field-South. By showing that there are this many missed black holes in this small patch of sky, researchers can estimate how many others there might be across the Universe. These results are important for theoretical models estimating the number of black holes in the universe and their growth rates, including those with different amounts of obscuration. Scientists design these models to explain a uniform glow in X-rays across the sky called the "X-ray background," first discovered in the 1960s. Since then, astronomers have used Chandra and other telescopes to bring the X-ray background into focus and show that most of the glow comes from individual growing black holes. This newest discovery involves understanding the nature of the objects that have been some of the last to be resolved.

The mind-blowing science of black holes Watch the newest video from Big Think: https://bigth.ink/NewVideo Learn skills from the world's top minds at Big Think Edge: https://bigth.ink/Edge ---------------------------------------------------------------------------------- When it comes to black holes, science simultaneously knows so much and so little, which is why they are so fascinating. Focusing on what we do know, this group of astronomers, educators, and physicists share some of the most incredible facts about the powerful and mysterious objects. A black hole is so massive that light (and anything else it swallows) can't escape, says Bill Nye. You can't see a black hole, theoretical physicists Michio Kaku and Christophe Galfard explain, because it is too dark. What you can see, however, is the distortion of light around it caused by its extreme gravity. Explaining one unsettling concept from astrophysics called spaghettification, astronomer Michelle Thaller says that "If you got close to a black hole there would be tides over your body that small that would rip you apart into basically a strand of spaghetti that would fall down the black hole." ---------------------------------------------------------------------------------- TRANSCRIPT: MICHIO KAKU: First we think that out of the Big Bang came dark matter, invisible matter. If I held dark matter in my hand it would literally ooze its way right though my fingers, go right to the center of the Earth, go to China and then go back and forth between China and my hand. That's dark matter. We think that dark matter began to clump first because of gravity. Then matter was attracted to the clumpiness creating the super massive black hole and then later the galaxy itself began to form. We have computer simulations about this, but still the relationship is not yet clear. Now remember, stars. We know almost everything about stellar evolution. That's because the pentagon has given us physicists billions of dollars to model hydrogen bombs, and a star is nothing but a hydrogen bomb. However, a galaxy consists of over a hundred billion stars so it's much more difficult to tell which came first, the black hole or the galaxy itself. BILL NYE: The way I like to describe a black hole. It's a star. A black hole is a star. Now when you and I think of stars we think about the sun which is giving off all this light. But the other thing about the sun to keep in mind is it has a lot of gravity because it's huge. One of Einstein's discoveries, Albert Einstein's discoveries was that gravity changes the path of light. It can bend light. It's just not in our everyday experience. To measure it we usually find objects way out in space and we have known brightness and we see where we think they're going to be and then where they really appear to be and then we infer or figure out that they're not where we thought they were going to be because gravity bent the beam of light. It's amazing. Anyway, so a black hole is a star so massive that not even light can escape from it. MICHELLE THALLER: What you're looking at is something called the shadow of a black hole. Now, black holes tend to have material orbiting around them. Black holes have a lot of gravity and gas begins to fall in towards the black hole and it begins to spin up into a disk around the black hole. And as that gas gets closer and closer to the black hole its accelerated faster and faster. And so in this disc of gas some of it is traveling very close to the speed of light. You have a lot of friction. You have lots of things rubbing up against each other at very high speeds and incredible amounts of heat and light are generated in this disk. So black holes usually are surrounded by disks of very, very bright, very hot material and that's how we find them. Black holes themselves give off no radiation at all. Any light gets absorbed into the black hole and when I say light I mean every possible form of light from gamma rays, x-rays, infrared light that we think of as heat, radio waves. Nothing comes out of a black hole at all. So what you're looking at in this image is the black hole is sort of framed by this bright ring. And that bright ring is this hot material that's orbiting around the black hole. One of the first things you'd say well okay, it's really kind of a wonderful stroke of luck that the particular black hole we're looking at the ring was right face onto us. You see this bright ring exactly around the black hole. And, in fact, that's probably not the case. The disc of material could be at many different orientations around the black hole. Light itself has no mass. Light should not be attracted by gravity, right. I mean gravity is the force between two things that have mass. Light has no mass. It just flies straight through space... Read the full transcript at https://bigthink.com/videos/black-hole-science-facts

Black holes are the universe at its most extreme: matter and energy crunched so small they literally exit the known universe. Scientists are beginning to suspect that these monsters have a powerful impact on galaxies, solar systems and space-time itself. And now, researchers are finally getting a grip on these black holes with a new generation of high-tech laser systems and advanced telescopes in space. ---- This channel offers you full episodes of high quality documentaries. Enjoy and don't forget to subscribe 🙂 ---- Other channels you might be interested in: criminals and crimefighters: https://www.youtube.com/channel/UCYuXyzwA_w4-c1FJrqOnR0A hazards and catastrophes: https://www.youtube.com/channel/UC5WE_bClugxSVG1ENir8qzg

You can buy Universe Sandbox 2 here: http://amzn.to/2yJqwU6 Or get a shirt: https://teespring.com/stores/whatdamath Hello and welcome! My name is Anton and in this video, we will talk about a new brilliant experiment that proves the old notion that you could produce more energy by throwing objects into a black hole. Paper: https://www.nature.com/articles/s41567-020-0944-3 An excellent video from the researchers here: https://www.youtube.com/watch?v=ES2VxhRAkUM Support this channel on Patreon to help me make this a full time job: https://www.patreon.com/whatdamath 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 Bitcoins to spare? Donate them here to help this channel grow! 1GFiTKxWyEjAjZv4vsNtWTUmL53HgXBuvu Alternatively, PayPal donations can be sent here: https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=DNKM9SDWU3B3Q&source=url The hardware used to record these videos: 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 Specifically, great thanks to the following members: Morrison Waud Vlad Manshin Mark Teranishi TheHuntress Ralph Spataro Albert B. Cannon Lilith Dawn Greg Lambros adam lee Gabriel Seiffert Henry Spadoni J Carter Jer Silver surfer Konrad Kummli Nick Dolgy UnexpectedBooks.com Mario Rahmani George Williams Shinne Jakub Glos Johann Goergen Jake Salo LS Greger Lyndon Riley Lauren Smith Michael Tiganila Russell Sears Vinod sethi Dave Blair Robert Wyssbrod Randal Masutani Michael Mitsuda Assaf Dar Sagol Liam Moss Timothy Welter MD Barnard Rabenold Gordon Cooper Tracy Burgess Douglas Burns Jayjay Volz Anataine Deva Kai Raphahn Sander Stols Bodo Graßmann Daniel Charles Smith Daniel G. Eugene Sandulenko gary steelman Max McNally Michael Koebel Sergio Ruelas Steven Aiello Victor Julian Castillo xyndicate Honey Suzanne Lyons Olegas Budnik Dale Andrew Darling Niji Peter Hamrak Matthew Lazear Alexander Afanasyev Anton Newman Anton Reed

You can buy Universe Sandbox 2 here: http://amzn.to/2yJqwU6 Or get a shirt: https://teespring.com/stores/whatdamath Hello and welcome! My name is Anton and in this video, we will talk about a strange collision between a black hole and something peculiar that scientists can't explain. Paper: https://iopscience.iop.org/article/10.3847/2041-8213/ab960f Or: https://arxiv.org/pdf/2006.12611.pdf Support this channel on Patreon to help me make this a full time job: https://www.patreon.com/whatdamath 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 Bitcoins to spare? Donate them here to help this channel grow! 1GFiTKxWyEjAjZv4vsNtWTUmL53HgXBuvu Alternatively, PayPal donations can be sent here: https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=DNKM9SDWU3B3Q&source=url The hardware used to record these videos: 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 Specifically, great thanks to the following members: Morrison Waud Vlad Manshin Mark Teranishi TheHuntress Ralph Spataro Albert B. Cannon Lilith Dawn Greg Lambros adam lee Gabriel Seiffert Henry Spadoni J Carter Jer Silver surfer Konrad Kummli Nick Dolgy UnexpectedBooks.com Mario Rahmani George Williams Shinne Jakub Glos Johann Goergen Jake Salo LS Greger Lyndon Riley Lauren Smith Michael Tiganila Russell Sears Vinod sethi Dave Blair Robert Wyssbrod Randal Masutani Michael Mitsuda Assaf Dar Sagol Liam Moss Timothy Welter MD Barnard Rabenold Gordon Cooper Tracy Burgess Douglas Burns Jayjay Volz Anataine Deva Kai Raphahn Sander Stols Bodo Graßmann Daniel Charles Smith Daniel G. Eugene Sandulenko gary steelman Max McNally Michael Koebel Sergio Ruelas Steven Aiello Victor Julian Castillo xyndicate Honey Suzanne Lyons Olegas Budnik Dale Andrew Darling Niji Peter Hamrak Matthew Lazear Alexander Afanasyev Anton Newman Anton Reed

You can buy Universe Sandbox 2 here: http://amzn.to/2yJqwU6 Or get a shirt: https://teespring.com/stores/whatdamath Hello and welcome! My name is Anton and in this video, we will talk about a discovery coming from within the center of the Milky Way that suggests the area around the black hole has an extremely high magnetic field. Presented at American Astronomical Society: https://aas.org/meetings/aas236 Support this channel on Patreon to help me make this a full time job: https://www.patreon.com/whatdamath 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 Bitcoins to spare? Donate them here to help this channel grow! 1GFiTKxWyEjAjZv4vsNtWTUmL53HgXBuvu Alternatively, PayPal donations can be sent here: https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=DNKM9SDWU3B3Q&source=url The hardware used to record these videos: 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 Specifically, great thanks to the following members: Morrison Waud Vlad Manshin Mark Teranishi TheHuntress Ralph Spataro Albert B. Cannon Lilith Dawn Greg Lambros adam lee Gabriel Seiffert Henry Spadoni J Carter Jer Silver surfer Konrad Kummli Nick Dolgy UnexpectedBooks.com Mario Rahmani George Williams Shinne Jakub Glos Johann Goergen Jake Salo LS Greger Lyndon Riley Lauren Smith Michael Tiganila Russell Sears Vinod sethi Dave Blair Robert Wyssbrod Randal Masutani Michael Mitsuda Assaf Dar Sagol Liam Moss Timothy Welter MD Barnard Rabenold Gordon Cooper Tracy Burgess Douglas Burns Jayjay Volz Anataine Deva Kai Raphahn Sander Stols Bodo Graßmann Daniel Charles Smith Daniel G. Eugene Sandulenko gary steelman Max McNally Michael Koebel Sergio Ruelas Steven Aiello Victor Julian Castillo xyndicate Honey Suzanne Lyons Olegas Budnik Dale Andrew Darling Niji Peter Hamrak Matthew Lazear Alexander Afanasyev Anton Newman Anton Reed

Find out what you can look for in the night sky in the next month, plus catch up on all the latest space news. From SpaceX, to magnetic fields around the Milky Way's supermassive black hole, to observing the very first stars in the Universe with the Hubble Space Telescope #space #astronomy #stargazing 00:00 - Introduction 00:28 - Toenail Moon & Venus 01:08 - Earth furthest away from the Sun 02:24 - Jupiter, Saturn, Moon rising 03:33 - 4 planets and the Moon 04:47 - Success of the SpaceX Dragon 06:18 - Missing "normal" matter found 10:39 - Magnetic field around our SMBH 17:46 - Hunting for the very first stars in the Universe SOFIA magnetic field image press release: https://www.nasa.gov/feature/magnetic-fields-force-new-perspective-on-the-center-of-our-milky-way-galaxy/ Bhatawdekar & Conselice (2020) - https://arxiv.org/pdf/2006.00013.pdf Nicastro et al. (2020) - https://www.nature.com/articles/s41586-018-0204-1 (That's the official paper but it's behind a paywall - here's the arxiv version - not peer reviewed but presenting same science - posted a few years ago: https://arxiv.org/pdf/1806.08395.pdf) Thanks again to Rach Bhatawdekar for speaking to me about her work. You can follow her on Twitter: https://twitter.com/astrorach And see her ESA webpage here: https://www.cosmos.esa.int/web/personal-profiles/rachana-bhatawdekar --- 🔔 Don't forget to subscribe and click the little bell icon to be notified when I post a new video! ---- 📚 My book: "Space at the speed of light" is now available in the USA & Canada! Order your copy here: https://www.penguinrandomhouse.com/books/635406/space-at-the-speed-of-light-by-dr-becky-smethurst/ 📚 For anywhere else in the world you can buy my book here (Space: 10 Things You Should Know - same book, different title) here: http://bit.ly/SpaceDrBecky --- 🔭 Royal Astronomical Society podcast that I’m co-hosting 😱 🥳- podfollow.com/supermassive --- 📹 Dr. Becky also presents videos on Sixty Symbols: https://www.youtube.com/user/sixtysymbolsand Deep Sky Videos: https://www.youtube.com/user/DeepSkyVideos --- 👩🏽‍💻 Dr Becky Smethurst is an astrophysicist researching galaxies and supermassive black holes at Christ Church at the University of Oxford. http://drbecky.uk.com https://rebeccasmethurst.co.uk

I’d say half the astronomy-related videos on YouTube are all about black holes. Clearly, they’re a fascinating topic, but they’re also a mystery. How do you observe something that can absorb all the radiation and matter falling onto them, and nothing can ever escape? How do we know they’re really there, and what are the best observations we can make? Today I’m joined by Dr. Paul Sutter, a cosmologist, and astrophysicist to talk about how we know black holes are really there and not just a figment of an astrophysicist’s imagination? Paul's Channel: https://www.youtube.com/channel/UCBr7XOxxQyBHEwqkhoci7vw Paul's new book: http://www.pmsutter.com/book Thumbnail credit: ESO Our Book is out! https://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/1624145442/ Audio Podcast version: ITunes: https://itunes.apple.com/us/podcast/universe-today-guide-to-space-audio/id794058155?mt=2 RSS: https://www.universetoday.com/audio Weekly email newsletter: https://www.universetoday.com/newsletter Weekly Space Hangout: https://www.youtube.com/channel/UC0-KklSGlCiJDwOPdR2EUcg/ Astronomy Cast: https://www.youtube.com/channel/UCUHI67dh9jEO2rvK--MdCSg Support us at https://www.patreon.com/universetoday More stories at https://www.universetoday.com/ Twitch: https://twitch.tv/fcain Twitter: https://twitter.com/universetoday Facebook: https://www.facebook.com/universetoday Instagram - https://instagram.com/universetoday Team: Fraser Cain - @fcain / [email protected] Karla Thompson - @karlaii / https://www.youtube.com/channel/UCEItkORQYd4Wf0TpgYI_1fw Chad Weber - [email protected]

On this episode of StarTalk Radio, we bring you Part II of Cosmic Queries – Black Holes and Dark Energy. Neil deGrasse Tyson and comic co-host Chuck Nice are answering fan-submitted questions about what we know, and don’t know, about black holes and dark energy. You’ll hear why a black hole’s consumption of matter does not overpower the evaporation caused by Hawking radiation. Neil tells us what’s actually “evaporating” during Hawking radiation. He also tells us two remarkable facts about black holes that are sure to blow your mind. We discuss how a spy satellite accidently opened a new branch of astrophysics. Find out more about singularities. We investigate the singularity at the beginning of our universe and Neil explains when string theory needs to be brought to the table. Chuck shares how his son coined the word “ringularity.” We assess the possibility of black holes being used as an intergalactic highway system to connect one galaxy to the next. Find out more about “white holes.” Discover more about supermassive black holes. We explore the nature of photons: how they can be pulled into black holes if they’re massless and why they travel along the fabric of spacetime. Adventure back in time to Sir Arthur Eddington’s expedition to uncover how light bends around the sun. We ponder if dark energy and dark matter are “stuff” permeating from another universe into our own. Discover why light is trapped in our galaxy but gravity isn’t. We discuss the likelihood that intelligent life is more advanced than us. Lastly, Neil shares final thoughts on the delicate evolution of the tree of life. Support us on Patreon: https://www.patreon.com/startalkradio Subscribe to StarTalk: https://www.youtube.com/user/startalkradio?sub_confirmation=1 Follow StarTalk: Twitter: http://twitter.com/startalkradio Facebook: https://www.facebook.com/StarTalk Instagram: https://www.instagram.com/startalkradio/ About StarTalk: Science meets pop culture on StarTalk! Astrophysicist & Hayden Planetarium director Neil deGrasse Tyson, his comic co-hosts, guest celebrities & scientists discuss astronomy, physics, and everything else about life in the universe. Keep Looking Up! Originally aired March 2, 2020. #StarTalk #NeildeGrasseTyson

NASA's Chandra X-ray observatory was used to capture imagery of a black hole in the MAXI J1820+070 system "hurling hot material into space at close to the speed of light," according to the Chandra team. Credit: NASA/CXC/A. Hobart

Welcome to my channel! I'm Dr Maggie Lieu and I make youtube videos about space & astronomy. In this weeks video, I'll be talking about the most energetic events in our Universe. Extra reading: GRB080916C, Fermi Collaboration: http://www.sciencemag.org/cgi/rapidpdf/1169101.pdf Ophiuchus cluster AGN outburst, Giacintucci+2020: https://arxiv.org/abs/2002.01291 Media credits: Solo: ESA/SOLO/ATG solarflare: ESA supernova: hubble Milkyway: NASA/ESA/Holwerda If you enjoyed the video, please help me by liking, sharing and subscribing! I'm also on: twitter: https://twitter.com/space_mog instagram: https://instagram.com/space_mog/ facebook: https://facebook.com/spacemog/

By popular demand - Part 2 of the video all about my PhD research into what causes galaxies to stop forming stars (or "die"). This time I talked about the second half of my thesis which looked for observational evidence (i.e. used telescopes to observe the universe) of supermassive black holes killing galaxies, and the effect of a galaxy's environment. Link to my thesis: https://ora.ox.ac.uk/objects/uuid:c7023345-ec69-42c3-907e-32c12a9ee115 Smethurst et al. (2015) - https://arxiv.org/pdf/1501.05955.pdf Smethurst et al. (2016) - https://arxiv.org/pdf/1609.00023.pdf Smethurst et al. (2017) - https://arxiv.org/pdf/1704.06269.pdf ---- 📚 My book: "Space at the speed of light" is now available in the USA & Canada! Order your copy here: https://www.penguinrandomhouse.com/books/635406/space-at-the-speed-of-light-by-dr-becky-smethurst/ 📚 For anywhere else in the world you can buy my book (Space: 10 Things You Should Know - same book, different title) here: http://bit.ly/SpaceDrBecky --- For more information on how *you* can help tackle the abhorrent and incessant systemic racism in society, I found these two pages very helpful to find organisations, books to read, things to watch and people to follow: https://www.itsnicethat.com/news/resources-supporting-black-lives-matter-movement-creative-industry-010620 https://www.independent.co.uk/life-style/black-lives-matter-protest-support-george-floyd-donate-petition-a9542576.html --- 🔔 Don't forget to subscribe and click the little bell icon to be notified when I post a new video! --- 🔭 Royal Astronomical Society podcast that I’m co-hosting 😱 🥳- podfollow.com/supermassive --- 📹 Dr. Becky also presents videos on Sixty Symbols: https://www.youtube.com/user/sixtysymbolsand Deep Sky Videos: https://www.youtube.com/user/DeepSkyVideos --- 👩🏽‍💻 Dr Becky Smethurst is an astrophysicist researching galaxies and supermassive black holes at Christ Church at the University of Oxford. http://drbecky.uk.com https://rebeccasmethurst.co.uk

Full podcast episodes: http://www.askaspaceman.com Support: http://www.patreon.com/pmsutter Follow: http://www.twitter.com/PaulMattSutter and http://www.facebook.com/PaulMattSutter What kind of crazy physics made primordial black holes? What does that have to do with the LIGO observations of merging black holes? How can we possibly detect them? I discuss these questions and more in today’s Ask a Spaceman! Follow all the show updates at http://www.askaspaceman.com, and help support the show at http://www.patreon.com/pmsutter! Keep those questions about space, science, astronomy, astrophysics, and cosmology coming to #AskASpaceman for COMPLETE KNOWLEDGE OF TIME AND SPACE! Music by Jason Grady and Nick Bain.

A system called MAXI J1820+070, about 10,000 light-years from Earth, is comprised of a black hole and a companion star. "Astronomers were able to capture footage of this black hole's behavior" with Chandra X-ray Observatory observations in 2018 and 2019. Credit: NASA/CXC/A. Hobart

Astronomers, using NASA's Chandra X-ray observatory, have observed a black hole spewing hot material into space at close to the speed of light. We are talking about MAXI J1820+070 which is a binary system made up of a black hole and its companion star. It lies about 10,000 light-years from Earth inside our galaxy. Source: https://arxiv.org/abs/2004.06416 Video: https://chandra.harvard.edu/photo/2020/maxij1820/ Black Hole related videos: 1. What Is A High-Energy Jet https://www.youtube.com/watch?v=iqOc9L7wFgo 2. Closest Black Hole To Earth Found https://www.youtube.com/watch?v=KUWRR_lzVfA 3. There's Something Mysterious Around a Black Hole https://www.youtube.com/watch?v=YP0_kpcsf90 4. Can Anything Escape a Black Hole? https://www.youtube.com/watch?v=SAa0F8gNVOg SUBSCRIBE ► https://goo.gl/PLLFPz ---- Website ► https://cosmoknowledge.com/ TikTok ► https://www.tiktok.com/@cosmoknowledge Instagram ► https://www.instagram.com/itscosmoknowledge Facebook ► https://facebook.com/cosmoknowledgee Narrator: Russell Archey https://www.ravonmedia.com/ Graphics & Credits: NASA/Goddard Space Flight Center/CI Lab NASA/CXC/SAO Space Engine NASA's Eyes Music: Smouldering - Brendon Moeller - Cosmoknowledge brings news from space. We love you, explorers!

In this week's questions show, I answer whether or not dark matter could become a black hole, how do we know the Universe is flat, and what would happen to the world's market for precious metals once we start mining asteroids? Natalie Hinkel, SWRI http://www.nataliehinkel.com/ Follow Natalie on Twitter: https://twitter.com/natalie_hinkel/ 00:00 Start 00:26 Can dark matter turn into a black hole? 05:07 If the Universe is flat, how can it be expanding? 08:00 Will asteroid mining devalue markets on Earth? 10:06 Good binoculars for a newbie? 11:13 Why haven't we found Planet 9 yet? 12:55 What species will replace humanity on Earth? 16:14 What if someone found our spacecraft orbiting an interstellar object? 17:45 What if Venus and Earth swapped sizes? 19:09 Why do we need a reason for an accelerating Universe? 22:37 Is NASA moving too fast? 26:13 Could you use a leaf blower on the Moon? 27:51 Could you have an exoplanetary system without a star? Want to be part of the questions show? Ask a short question on any video on my channel. I gather a bunch up each week and answer them here. Our Book is out! https://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/1624145442/ Audio Podcast version: ITunes: https://podcasts.apple.com/us/podcast/universe-today-guide-to-space-audio/id794058155?mt=2 RSS: https://www.universetoday.com/audio Weekly email newsletter: https://www.universetoday.com/newsletter Weekly Space Hangout: https://www.youtube.com/channel/UC0-KklSGlCiJDwOPdR2EUcg/ Astronomy Cast: https://www.youtube.com/channel/UCUHI67dh9jEO2rvK--MdCSg Support us at https://www.patreon.com/universetoday More stories at https://www.universetoday.com/ Twitch: https://twitch.tv/fcain Follow us on Twitter: https://twitter.com/universetoday Like us on Facebook: https://www.facebook.com/universetoday Instagram - https://instagram.com/universetoday Team: Fraser Cain - @fcain / [email protected] Karla Thompson - @karlaii / https://www.youtube.com/channel/UCEItkORQYd4Wf0TpgYI_1fw Chad Weber - [email protected]