The event horizon telescope

The black hole of our Milky Way as seen in polarized light. Astronomers have for the first time been able to measure polarity, a hallmark of magnetic fields, so close to the rim of Sagittarius A*. The lines added to the image indicate the direction of polarization, which is related to the magnetic field around the shadow of the black hole. Credit: EHT Collaboration

Strong magnetic fields surround the Milky Way's central black hole

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A black hole with its bright event horizon. Illustration: depositphotos.com

Black holes send signals - a breakthrough method by astrophysicists to decipher them

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Astrophysicists have developed a method for detecting echoes of light from black holes that will allow measuring their mass and rotation
Scientists observing the compact radio core of M87 have discovered new details about the galaxy's supermassive black hole. In this artist's view, the black hole's massive jet appears to rise from the center of the black hole. The observations on which this figure is based represent the first time the jet and the black hole's shadow have been imaged together, providing scientists with new insights into how black holes can launch these powerful jets. Courtesy of ESO

For the first time a black hole was photographed together with the turbulent environment near it

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In a recent paper published in the journal Nature, scientists analyzed new data from the Event Horizon Telescope (EHT) to produce the most detailed image yet of the supermassive black hole at the center of the galaxy M87
This is the first image of Sagittarius A* the supermassive black hole at the center of our galaxy. This is the first direct visual evidence of the presence of this black hole. Until now, it has been recognized for its influence on the stars close to it. The black hole was imaged using the Event Horizon Telescope (EHT), an array that joined together eight existing radio observatories around Earth to create one virtual "Earth-sized" telescope. The telescope is named after the event horizon, a nickname for the boundary of the black hole beyond which no light can escape. It took five years to process the image. Credit: EHT Partnership

Improving the ability to observe the black hole at the center of the galaxy will make it possible to test Einstein's theory of general relativity

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Says Dr. Shahar Hadar, a theoretical astrophysicist from the University of Haifa and Oranim College who also works in the development of the next generation of the Event Horizon Telescope. He also explains why it took five years to produce the photograph