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Monster Black Holes - National Geographic

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Black Holes National Geographic Documentary HD

Black Holes National Geographic Documentary HD
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New BBC Documentary Full HD - Monster Black Holes National Geographic

National Geographic Documentary | Black Holes & Monsters of Universe | Science Documentary Full HD Black holes of stellar .

New BBC Documentary Full HD - Monster Black Holes National Geographic Travel to the edge of space and beyond to discover .

Somewhere, not farm from Earth, a star dies. It explodes in a violent supernova and leaves behind the strangest phenomenta in the Cosmos - a black hole.

National Geographic Documentary | Lake Monster of the North Full HD | Science Documentaries A lake monster (or, in Scotland, .
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Biggest Black Holes and Cosmic Monsters - Space Discovery Documentary

Black holes are gigantic cosmic monsters, exotic objects whose gravity is so strong that not even light can escape their clutches.

Black holes come in a wide variety of forms, from small stellar-mass bodies to the supermassive beasts that reside at the hearts of galaxies. Here are 10 of the most extreme black holes, from the smallest to the largest and from cannibals to rogues.
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How the Universe Works - Black holes - Space Discovery Documentary

How the Universe Works - Black holes - Space Discovery Documentary
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The Most Dangerous Supermassive Giant Black Hole in the Universe Documentary HD 1080p

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Monster Black Holes - Space Documentary HD

A black hole is a mathematically defined region of spacetime exhibiting such a strong gravitational pull that no particle or electromagnetic radiation can escape from it. The theory of
general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole.[2][3] The boundary of the region from which no escape is possible is called the event
horizon. Although crossing the event horizon has enormous effect on the fate of the object crossing it, it appears to have no locally detectable features. In many ways a black hole acts like
an ideal black body, as it reflects no light. Moreover, quantum field theory in curved spacetime predicts that event horizons emit Hawking radiation, with the same spectrum as a black
body of a temperature inversely proportional to its mass. This temperature is on the order of billionths of a kelvin for black holes of stellar mass, making it essentially impossible to observe.

Objects whose gravitational fields are too strong for light to escape were first considered in the 18th century by John Michell and Pierre-Simon Laplace. The first modern solution of general
relativity that would characterize a black hole was found by Karl Schwarzschild in 1916, although its interpretation as a region of space from which nothing can escape was first published by
David Finkelstein in 1958. Long considered a mathematical curiosity, it was during the 1960s that theoretical work showed black holes were a generic prediction of general relativity. The discovery
of neutron stars sparked interest in gravitationally collapsed compact objects as a possible astrophysical reality.Thanks for watching Please Like, Share, Comment and Subscribe.
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Black Holes 101 | National Geographic

At the center of our galaxy, a supermassive black hole churns. Learn about the types of black holes, how they form, and how scientists discovered these invisible, yet extraordinary objects in our universe.
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Space Documentary - Biggest Black Holes - Universe Documentary National Geographic

Space Documentary - Biggest Black Holes - Universe Documentary National Geographic

Space (Hyperspace in the United States) is a 2001 BBC documentary which ran for six episodes covering a number of topics in relation to outer space. The series is hosted and narrated by actor Sam Neill. Star Stuff:The first episode covers the origins of life and how everything is produced by the process in which stars burn their fuel. Staying Alive: This episode analyses the chances of Earth being destroyed by a black hole or asteroid. Black Holes: Episode three looks at how black holes are formed and how they behave, with potential to destroy the solar system. Are We Alone?: Number four looks for potential homes of extraterrestrial life and the chances that humans could make contact New Worlds: The fifth episode covers the possibility of colonising and terraforming planets both in our solar system and beyond into deep space. Boldly Go: The final episode looks at the technologies that are being developed to

Black Holes and Our Solar System Documentary - The Universe and Space Exploration

How likely is it that a black hole could enter the Solar System? Well, you’d have to define likely; it is more likely that the Earth will get swallowed by a black hole than, say, winning the lottery ten times in a row, but less likely than being struck by lightning. In fact the odds of a black hole devouring our planet are estimated at one in a trillion.

There are two predominant types of black hole in the universe. The first are supermassive black holes found churning at the centre of galaxies. These don’t really pose any threat to us, until our galaxy collides with another like the Andromeda galaxy in a few billion years.

BLACK HOLES - Full Documentary - Penetrating the Mystery of Singularities

A black hole is a place in space where gravity pulls so much that even light can not get out. The gravity is so strong because matter has been squeezed into a tiny space. This can happen when a star is dying. Because no light can get out, people can't see black holes. They are invisible. Space telescopes with special tools can help find black holes. The special tools can see how stars that are very close to black holes act differently than other stars.

How Big Are Black Holes?

Black holes can be big or small. Scientists think the smallest black holes are as small as just one atom. These black holes are very tiny but have the mass of a large mountain. Mass is the amount of matter, or stuff, in an object.

Another kind of black hole is called stellar. Its mass can be up to 20 times more than the mass of the sun. There may be many, many stellar mass black holes in Earth's galaxy. Earth's galaxy is called the Milky Way.

The largest black holes are called supermassive. These black holes have masses that are more than 1 million suns together. Scientists have found proof that every large galaxy contains a supermassive black hole at its center. The supermassive black hole at the center of the Milky Way galaxy is called Sagittarius A. It has a mass equal to about 4 million suns and would fit inside a very large ball that could hold a few million Earths.


How Do Black Holes Form?
Scientists think the smallest black holes formed when the universe began.

Stellar black holes are made when the center of a very big star falls in upon itself, or collapses. When this happens, it causes a supernova. A supernova is an exploding star that blasts part of the star into space.

Scientists think supermassive black holes were made at the same time as the galaxy they are in.


If Black Holes Are Black, How Do Scientists Know They Are There?
A black hole can not be seen because strong gravity pulls all of the light into the middle of the black hole. But scientists can see how the strong gravity affects the stars and gas around the black hole. Scientists can study stars to find out if they are flying around, or orbiting, a black hole.

When a black hole and a star are close together, high-energy light is made. This kind of light can not be seen with human eyes. Scientists use satellites and telescopes in space to see the high-energy light.


Could a Black Hole Destroy Earth?
Black holes do not go around in space eating stars, moons and planets. Earth will not fall into a black hole because no black hole is close enough to the solar system for Earth to do that.

Even if a black hole the same mass as the sun were to take the place of the sun, Earth still would not fall in. The black hole would have the same gravity as the sun. Earth and the other planets would orbit the black hole as they orbit the sun now.

The sun will never turn into a black hole. The sun is not a big enough star to make a black hole.


How Is NASA Studying Black Holes?
NASA is using satellites and telescopes that are traveling in space to learn more about black holes. These spacecraft help scientists answer questions about the universe.
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The Strongest Force In The Universe - Space Science Documentary

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A supermassive black hole is the largest type of black hole, containing a mass of the order of hundreds of thousands, to billions times, the mass of the Sun. This is a class of astronomical objects that has undergone gravitational collapse, leaving behind a spheroidal region of space from which nothing can escape; not even light.

Observational evidence indicates that all, or nearly all, massive galaxies contain a supermassive black hole, located at the galaxy's center. In the case of the Milky Way, the supermassive black hole corresponds to the location of Sagittarius A* at the Galactic Core. Accretion of interstellar gas onto supermassive black holes is the process responsible for powering quasars and other types of active galactic nuclei.

How the Universe Works - Black Hole - Space Discovery Documentary

Black Holes are known to swallow everything coming in their path but that's not the end. With time they they emit enormous amounts of energy.

In 2015 Hubble Telescope captured something that shocked the entire world. It was a burst of plasma jet 260 million light years away in space coming from an unknown source. Calculations showed that the jet was travelling at 98% the speed of light.

Scientists finally concluded that they have captured a plasma burst coming from a super-massive Black Hole. Which is located inside a galaxy 260 million light-years away
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Death by Black Hole - National Geographic Channel

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First Image of a Black Hole

The first direct image of a black hole was captured by the Event Horizon Telescope (EHT). Using an array of radio telescopes during a 2017 global campaign, astronomers observed the black hole at the centre of Messier 87, a massive galaxy in the nearby Virgo galaxy cluster. Heino Falcke, Chair of the EHT Science Council, and Monika Moscibrodzka, astrophysicist at Radboud University, present the discovery.

Credit: European Commission/Event Horizon Telescope Collaboration
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National Geographic Documentary 2015 Monster Black Holes Full Documentary 2015 HD

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How the Universe Works - National Geographic The Universe - Space Discovery Documentary

How many planets are in the solar system? How did it form in the Milky Way galaxy? Learn facts about the solar system’s genesis, plus its planets, moons, and asteroids.

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