Liked on YouTube: Cheese! The First-Ever Image Of M87 Black Hole (And Its Movie)

Cheese! The First-Ever Image Of M87 Black Hole (And Its Movie)
Cheese! - The first-ever image of a black hole ( and its movie) They cannot be seen, yet they are not hiding. Nothing can escape to them, yet they are not chasing anything: they are just so...attractive. At first, Einstein didn't believe they could exist in physical reality, but today we know he was wrong. Because they exist. We know it for sure: in 2020, professor Roger Penrose shared the Nobel Prize for his famous discovery that their formation is a robust prediction of the general theory of relativity. I didn't even mention them, but you all know what I am talking about. Some scientists spent their lives studying these objects: Stephen Hawking was just one of the many. Ladies and gentlemen, fasten your seatbelts and follow me on this journey because today I am going to tell you the story of how we took a picture of a Black Hole(M87). ------------------------------------------------------------------------------------------- Subscribe for more videos:https://www.youtube.com/c/InsaneCuriosity?sub_confirmation=1? Business Enquiries: Lorenzovareseaziendale@gmail.com ------------------------------------------------------------------------------------------- In 2019 the world saw, for the first time ever, the image of a black hole. It was made a huge effort to bring this result home, and plenty of scientists from all over the world were involved in the project. I will tell you the story that lies behind this event, I will introduce some scientists to you that made this possible, and I am going to explain to you how we did it, how much important it was for science, and why. But...let's start with some information about black holes: despite their name, black holes are anything but empty space. Rather, they are some great, giant amount of matter packed into a very small area - think of a star ten times more massive than the Sun squeezed into a sphere approximately the diameter of New York City. The idea of an object in space so massive and dense that not even light itself could escape, it has been around for centuries. Most famously, black holes were predicted by Einstein's theory of general relativity, which showed that when a massive star dies, it leaves behind a small, dense remnant core. If the core's mass is more than about three times the mass of the Sun, the equations showed, the force of gravity overwhelms all other forces and produces a black hole. We can say that one Star's End is a Black Hole's Beginning. But...black holes...are black! Do you have any idea how should we make to observe them? Scientists can't directly observe black holes with telescopes that detect x-rays, light, or other forms of electromagnetic radiation, because they trap electromagnetic radiation. The answer is: we use indirect methods. We can infer the presence of black holes and study them by detecting their effect on other matter nearby. For example, if a star passes close to a black hole, the black hole can tear the star apart as it pulls it toward itself. As the attracted matter accelerates and heats up, it emits x-rays that radiate into space. Recent discoveries offer some tantalizing evidence that black holes have a dramatic influence on the neighborhoods around them - emitting powerful gamma ray bursts,a extraordinarily energetic radiation. This type of radiation occurs, for example, when mass is converted into energy during fission reactions that run nuclear reactors on Earth. But in the case of black holes, gamma radiation is even more energetic than that produced in nuclear reactors and is the product of very different processes. This powerful emission devours nearby stars, and spurs the growth of new stars in some areas while stalling it in others. Although the basic formation process is understood, one mystery in the science of black holes was that they appeared to exist on two radically different size scales. On the one end, there are the black holes that are the remnants of massive stars (we will refer to them as “Babies”). ------------------------------------------------------------------------------------------- "If You happen to see any content that is yours, and we didn't give credit in the right manner please let us know at: Lorenzovareseaziendale@gmail.com and we will correct it immediately" "Some of our visual content is under a Attribution-ShareAlike license. (https://ift.tt/1jttIpt) in it’s different versions such as 1.0, 2.0, 3,0 and 4.0 – permitting comercial sharing with attribution given in each picture accordingly in the video." Credits: Ron Miller Credits: Nasa/Shutterstock/Storyblocks/Elon Musk/SpaceX/Esa Credits: Flickr #InsaneCuriosity #M87 #FirstBlackHoleImage
via YouTube https://www.youtube.com/watch?v=h3ERfWtKUVQ