Here is the first-ever photo of a black hole

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Yet it is only 40 billion kilometers across-tiny by cosmic standards.

One of the telescopes in the network is the James Clerk Maxwell Telescope on top of Mauna Kea peak in Hawaii, where Australian Jessica Dempsey is deputy director.

The research was published today in The Astrophysical Journal Letters. However, a black hole that is located within the crowded centre of a galaxy draws matter toward itself.

'Of course we would have loved to prove Einstein wrong, but everything we see fits perfectly the prediction that is given by general relativity, ' said Dr Heino Falcke from Radboud University Nijmegen in the Netherlands, also a principal investigator on BlackHoleCam.

"It would be wonderful to be able to see this and confirm that that really heavy thing that's in the centre of the galaxy is definitely a black hole, and thus to confirm a bunch of the predictions of relativity", she said.

"As long as they have not been swallowed by the black hole, the material can be detected".

Usually, the more mass there is, the larger the black hole.

Can you survive after falling into a black hole?

As any science-fiction fan knows, black holes are concentrated areas of gravitational collapse so massive that nothing - not even light - can escape their pull.

A black hole's singularity is the point inside of a black hole, where in theory, the density has reached an infinite point.

The team is hoping to produce a groundbreaking image and determine whether Einstein was right when he predicted the exact size and shape of the black hole's shadow back in the early 20th century. "So far, it looks like Einstein is correct once again".

"Observatories operating at millimeter wavelengths enable the highest angular resolution because they are spread on the scale of the Earth, making effectively an aperture of that size", Loeb said.

On an astronomical level, supermassive black holes are intrinsically linked with the evolution of the galaxies they inhabit, but how they form and evolve together is another outstanding mystery.

A simulated illustration of a black hole shows the turbulent plasma in the extreme environment around a supermassive black hole.

Black holes are regions where mass has been concentrated beyond the point where anything can withstand its gravitational force.

This is a technical feat so demanding - akin to spotting a quarter on the surface of the moon - that the journey to make it possible has pushed technology to its limits. "With the M87 black hole being so massive, an orbiting planet would go around it within a week and be traveling at close to the speed of light". Speaking first is Carlos Moedas of the European Research Council.

The project cost $50 million to $60 million, with $26 million of that coming from the National Science Foundation. Now, after nearly two years of acquiring and processing the data, the scientists are ready to release their findings on 10 April. Instead the data was stored on hundreds of hard drives which were flown to a central processing centre. "The EHT team is to be congratulated for overcoming many technical challenges to achieve the goal of imaging black holes".

Getting this global telescope network in sync has been an exercise in precision.

The information they gathered was too much to be sent across the internet. Prof Doeleman described the achievement as "an extraordinary scientific feat". "We have achieved something presumed to be impossible just a generation ago". But it was primarily created to detect waves with wavelengths measured in centimeters, whereas the black hole imaging project mainly examines frequencies measured in millimetres.

EHT astronomers are linking telescopes to record interference around two supermassive black holes in the middle of the Milky Way.