Scientists expose first true image of black hole

The Event Horizon Telescope (EHT) — a planet-scale array of eight ground-based radio telescopes forged through international collaboration — was designed to capture images of a black hole. In coordinated press conferences across the globe, EHT researchers revealed that they succeeded, unveiling the first direct visual evidence of the supermassive black hole in the centre of Messier 87 and its shadow. The shadow of a black hole seen here is the closest we can come to an image of the black hole itself, a completely dark object from which light cannot escape. The black hole’s boundary — the event horizon from which the EHT takes its name — is around 2.5 times smaller than the shadow it casts and measures just under 40 billion km across. While this may sound large, this ring is only about 40 microarcseconds across — equivalent to measuring the length of a credit card on the surface of the Moon. Although the telescopes making up the EHT are not physically connected, they are able to synchronize their recorded data with atomic clocks — hydrogen masers — which precisely time their observations. These observations were collected at a wavelength of 1.3 mm during a 2017 global campaign. Each telescope of the EHT produced enormous amounts of data – roughly 350 terabytes per day – which was stored on high-performance helium-filled hard drives. These data were flown to highly specialised supercomputers — known as correlators — at the Max Planck Institute for Radio Astronomy and MIT Haystack Observatory to be combined. They were then painstakingly converted into an image using novel computational tools developed by the collaboration.

Predicted by the equations of Albert Einstein’s theory of general relativity, Black holes are entities so impenetrable that nothing, not even light, can penetrate from their gravity.

Scientist and Astronomers have found out at last what they have captured are images of the darkest entities in the cosmos.

The image revealed by the scientist is the real thing – a black hole, not an artist’s impression or a computer-generated impression. The first results from the Event Horizon Telescope conceived precisely by scientists is unveiled at six press conferences held across the globe on Wednesday scheduled for 1300 GMT.

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To human curiosity and search to find out the hidden miracles, all the forces in the Universe that includes dark energy and dark matter but the top of all thing that frustrates more are the invisible, star-devouring monsters known as black holes.

These black holes are built on the phenomena are so powerful that nothing close or not even light can outflow their gravitational pull.

The European Space Agency and project scientist for the LISA, Paul McNamara, an astrophysicist said that over the years, they accumulated indirect observational evidence. He is part of a mission in which they track massive black hole mergers from space.

A black hole is a cosmic object that holds a huge indescribable structure into an exceptionally small space. The more mass it contains, the larger the black hole gets.

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Scientists have given two types of black holes:
One is the Garden-variety black holes, they are up to 20 times more massive than the Sun and are formed when the center of a very big star collapse in on itself.
The other is so-called supermassive black holes, these are at least a million times bigger than the Sun and Both Sag A* and M87 black holes fall under this category.

In the latest update on website, the team said that the imaging algorithms they have developed fill the gaps of data that are missing in order to reconstruct a picture.


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