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The black hole at the center of the Milky Way

The central region of the Milky Way galaxy as photographed by the Sobro telescope. The image shows many stars in a field of view that is about 0.4 light-years wide. The star S0-6 (in the blue circle), the subject of this study, is about 0.04 light-years from the supermassive black hole Sagittarius A* (in the green circle). Credit: Miyagi University of Education/NAOJ

Across Time and Space: A Mysterious Star's Epic Journey to the Center of the Milky Way

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Research by an international team led by Shogo Nishiyama at Miyagi University shows that some of the stars closely circling the black hole at the center of the Milky Way galaxy may have come from further away than previously thought, completely outside the Milky Way.
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 photo published this week and what is planned to be done in order to improve the resolution
This is the first photograph 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. Credit: EHT Partnership

Astronomers reveal for the first time a "radio image" of the black hole at the heart of the Milky Way

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First image of the black hole at the center of our galaxy Sagittarius A* (Sagittarius Ai Kochav) which until now has been studied for its effect on other stars, this time we can see its event horizon. Photographed by the Ofek Al-Havain partnership which connected eight radio observatories into one radio telescope the size of the Earth
It is a complex picture of X-rays, molecular gas and hot ionized gas near the center of the galaxy. The orange shapes are glowing hydrogen gas. One of these shapes, at the upper end of the jet (see an illuminated image below) is interpreted as a hydrogen cloud that was hit by the jet and moved outward. The jet disperses the cloud into tendrils that move towards the north. Further down near the black hole are X-ray observations of highly heated gas in blue and molecular gas in green. These data are evidence that the black hole is occasionally accreted by stars or gas clouds, and is ejecting some of the very hot material along its axis of rotation. Credit: NASA, ESA, and Gerald Cecil (UNC-Chapel Hill); Image Processing: Joseph DePasquale (STScI)

The Milky Way's supermassive black hole is still humming long after a burst of powerful 'death rays'

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The Hubble Space Telescope photographed a bright knot of gas hit by an invisible jet from the black hole, which is only 15 light years away. The black hole must have looked bright billions of years ago as a quasar, when our young galaxy was fed by lots of infalling gas. But after all this time the black hole is acting sporadically, unwilling to take a nap

The black hole at the center of the Milky Way is slowly spinning, but what does that mean?

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The black hole at the center of the Milky Way is slowly spinning, but what does that mean?
Star S2 orbiting the black hole at the center of the galaxy - Sagittarius (Sagittarius) *A, one of the proofs for the existence of the black hole at the center of the galaxy, from the research of 2020 Nobel Prize winners Reinhart Ganzel and Andrea Gas. From Wikipedia. By ESO/M. Kornmesser - https://www.eso.org/public/images/eso1825b/ , CC BY 1825, Link

"Without the observations of Ganzel and Gas, the whole subject of black holes would have remained theoretical"

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Observations made with the European Southern Observatory's (ESO) Very Large Telescope (VLT) have revealed for the first time that a star orbiting the supermassive black hole at the center of the Milky Way moves exactly as Einstein predicted in his theory of general relativity. Its orbit is in the shape of a rosette and not in the shape of an ellipse as Newton predicted in his theory of gravity. Figure: ESO

ESO's Giant Telescope in Chile watched the star dance around the supermassive black hole at the center of the Milky Way; Proves that Einstein was right

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A view of a cluster of young stars (million years old), known as the North American Nebula or the Plesian Nebula (top right). This is a clean and processed version of the original Spitzer Space Telescope image. NASA/JPL-Caltech. Illustration: shutterstock

New video: A high-resolution tour of the center of the Milky Way

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Stars are running away. Graphics: Julie Turner, the top view of the galaxy is from NASA and the horizontal image is from the European Southern Observatory. Credit: Graphic design by Julie Turner, Vanderbilt University. The top view of the galaxy comes from the National Aeronautics and Space Administration and the side view comes from the European Southern Observatory.)

A surprising new type of ultra-fast stars escaping the galaxy

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The Milky Way over a desert landscape in Spain. Photo: shutterstock

The Dragon Awakens - a huge explosion 2 million years ago of the black hole at the center of the Milky Way

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black hole. Illustration: shutterstock

The cloud to the black hole: I will feed you dust / Michael Moyer

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In the photo: a space map showing the two paths of gamma rays above and below the galaxy according to Fermi's measurements. Image: NASA

NASA scientists have discovered two mysterious giant bubbles on either side of the Milky Way

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The center of the Milky Way, which also contains the black hole *Sagittarius A. The black hole and several massive young stars in this region create the heated gas vapor visible at X-ray frequencies. Photo: Helvin Chandra, Harvard University and Tokyo University

The Laboratory for Testing General Relativity: The Supermassive Black Hole and the Star

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Artist's impression of the accelerating star HE 0437-5439. The hot blue star was ejected from the Milky Way with enough speed to escape the galaxy's gravitational pull. It is now flying through the outer fringes of the Milky Way at a speed of 2.5 million km/h far above the disk of the galaxy, about 200 light years from the center. It is now destined to move in the bingalactic space. Image: NASA, European Space Agency et al. Bacon of the Space Telescope Science Institute.

Hubble photographed a star that the black hole kicked out of the Milky Way

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Escaping stars may explain the mystery of medium-sized black holes

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Radio astronomers have measured the Sun's orbit around the center of the Milky Way

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