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Resolving the core of the J1924-2914 blazar with the Event Horizon Telescope

Scientists at the Event Horizon Telescope (EHT) have imaged the distant blazar J1924-2914 with unprecedented angular resolution, revealing previously unseen details of the source structure. Blazars are powerful active galactic nuclei, in which supermassive black holes eject relativistic jets directed along our line of sight. A blazar can outshine its entire galaxy and may be observed from a distance of billions of light-years with our radio telescopes.

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Imaging Reanalyses of EHT Data

The Event Horizon Telescope Collaboration (EHTC) welcomes critical, independent analysis and interpretation of our published results. We publish detailed descriptions of our methods as well as raw data, data products, and analysis scripts to facilitate transparency, rigor, and reproducibility.  

The EHT images of M87 are among the most vetted interferometric images ever published (1,2). Four independent analyses (3,4,5,6) have reconstructed the ring-like structure of M87, employing a diverse set of techniques.  These efforts complement the three...

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Astronomers Reveal First Image of the Black Hole at the Heart of Our Galaxy

Astronomers have unveiled the first image of the supermassive black hole at the centre of our own Milky Way galaxy. This result provides overwhelming evidence that the object is indeed a black hole and yields valuable clues about the workings of such giants, which are thought to reside at the centre of most galaxies. The image was produced by a global research team called the Event Horizon Telescope (EHT) Collaboration, using observations from a worldwide network of radio telescopes.

The image is a long-anticipated look at the massive object that sits at the...

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Public Data Release of the Event Horizon Telescope 2017 Observations

The Event Horizon Telescope Collaboration (EHTC) and Joint ALMA Observatory (JAO) announce the public data release of the Very Long Baseline Interferometry (VLBI) 1-mm observations by the Event Horizon Telescope (EHT) in April 2017. The overall goal of the observations is to image the supermassive black holes M 87* and Sagittarius A* at event horizon scales and to image the AGNs OJ 287, 3C 279, Centaurus A, and NGC 1052 at high resolution.

Public release data packages are available from...

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Event Horizon Telescope Collaboration to Announce Groundbreaking Milky Way Results on May 12th, 2022, at 13:00 UT

Simultaneous press conferences will announce groundbreaking results from the Event Horizon Telescope Collaboration, those will be synchronised at 13:00 Universal Time on May 12th, 2022.  Those will be held in collaboration with the USA National Science Foundation, the European Southern Observatory, the Joint ALMA Observatory, and other funding agencies and institutions.  These events will also be streamed online.  A selection of the events is listed, by alphabetical order of location (local times are provided).

  • Garching bei München, European...
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EHT Pinpoints Dark Heart of the Nearest Radio Galaxy

An international team anchored by the Event Horizon Telescope (EHT) Collaboration, which is known for capturing the first image of a black hole in the galaxy Messier 87, has now imaged the heart of the nearby radio galaxy Centaurus A in unprecedented detail. The astronomers pinpoint the location of the central supermassive black hole and reveal how a gigantic jet is being born. Most remarkably, only the outer edges of the jet seem to emit radiation, which challenges our theoretical models of jets. This work, led by Michael Janssen from the...

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NSBP/SAO EHT Scholars Program Reaches Second Year Milestone

Launched in 2020, the Smithsonian Astrophysical Observatory partnership with the National Society of Black Physicists welcomes two Summer 2021 interns to work on Event Horizon Telescope science.

Cambridge, MA (July 14, 2021)— Center for Astrophysics | Harvard & Smithsonian has welcomed two new summer interns thanks to a union between the National Society of Black Physicists (NSBP) and the...

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Astronomers Image Magnetic Fields at the Edge of M87’s Black Hole

The Event Horizon Telescope (EHT) collaboration, who produced the first ever image of a black hole, has revealed today a new view of the massive object at the centre of the M87 galaxy: how it looks in polarised light. This is the first time astronomers have been able to measure polarisation, a signature of magnetic fields, this close to the edge of a black hole. The observations are key to explaining how the M87 galaxy, located 55 million light-years away, is able to launch energetic jets from its core.

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