Event Horizon Telescope
Hero Pagination
The Event Horizon Telescope is an international collaboration capturing images of black holes using a virtual Earth-sized telescope.
EHT News Blog
Response to An Independent Analysis of EHTC Imaging of Sgr A* by Miyoshi et al. 2024
In 2022, the Event Horizon Telescope Collaboration (EHTC) published the first image of the black hole in the Milky Way Galactic Center, Sagittarius A* (Sgr A*; 1). The image shows a ring-like structure with a central depression, consistent with the...
EHT Makes Highest-Resolution Black Hole Detections from Earth
The Event Horizon Telescope (EHT) Collaboration, in collaboration with the Atacama Large Millimeter/submillimeter Array (ALMA), has conducted test observations achieving the highest-resolution ever obtained from the surface of the Earth, by detecting...
Astronomers Unveil Strong Magnetic Fields Spiraling at the Edge of Milky Way’s Central Black Hole
A new image from the Event Horizon Telescope (EHT) collaboration has uncovered strong and organized magnetic fields spiraling from the edge of the supermassive black hole Sagittarius A* (Sgr A*). Seen in polarized light for the first time, this new view...
M87* One Year Later: Proof of a Persistent Black Hole Shadow
The Event Horizon Telescope (EHT) Collaboration has released new images of M87*, the supermassive black hole at the center of the galaxy Messier 87, using data from observations taken in April 2018. With the participation of the newly commissioned...
Fifth Year Milestone for the NSBP/SAO EHT Scholars
For the past four years, the National Society of Black Physicists ( NSBP ) and the Smithsonian Astronomical Observatory ( SAO ) have partnered to create cutting-edge research internships within the Event Horizon Telescope (EHT) project targeting STEM...
A supermassive black hole’s strong magnetic fields are revealed in a new light
The Event Horizon Telescope (EHT) collaboration has published new results that describe for the first time how light from the edge of the supermassive black hole M87* spirals as it escapes the black hole’s intense gravity, a signature known as circular...
Peering into the heart of a distant quasar with the Event Horizon Telescope
A global collaboration of scientists used the Earth-size virtual radio telescope, the Event Horizon Telescope (EHT), to see the innermost parts of the quasar NRAO 530. Quasars are extremely powerful sources of radiation located in the centers of distant...
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...
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...
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...
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...
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...
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...
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 |...
Einstein's Theory Can Explain the Black Hole M87*
Event Horizon Telescope Collaboration scientists use data which produced the first image of a black hole to constrain its fundamental properties. In 2019, the EHT Collaboration published the first image of a black hole located at the centre of the galaxy...
Telescopes Unite in Unprecedented Observations of Famous Black Hole
In April 2019, scientists released the first image of a black hole in the galaxy M87 using the Event Horizon Telescope (EHT). However, that remarkable achievement was just the beginning of the science story to be told. Data from nineteen observatories are...
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...
2021 Henry Draper Medal of the National Academy of Sciences Presented to Shep Doeleman and Heino Falcke
Recognizing their vision and leadership within the Event Horizon Telescope (EHT), the National Academy of Sciences (NAS) awards Shep Doeleman and Heino Falcke the Henry Draper Medal. The 300+ members of the collaboration are honored and proud of this...
2021 Royal Astronomical Society Group Achievement Award Presented to EHT
The Event Horizon Telescope (EHT) collaboration is pleased to have been granted by the Royal Astronomical Society (RAS) the 2021 Group Achievement Award (A). The EHT is a global network of synchronised radio observatories that work in unison to observe...
Einstein's Description of Gravity Just Got Much Harder to Beat
Einstein's theory of general relativity – the idea that gravity is matter warping spacetime – has withstood over 100 years of scrutiny and testing, including the newest test from the Event Horizon Telescope collaboration, published today in the latest...
Wobbling Shadow of the M87* Black Hole
Analysis of the Event Horizon Telescope observations from 2009-2017 reveals turbulent evolution of the M87* black hole image In 2019, the Event Horizon Telescope (EHT) Collaboration delivered the first image of a black hole , revealing M87*—the...
NSBP/SAO EHT Scholars Program Opens New Research Pathways for Underrepresented Young Physicists
Smithsonian Astrophysical Observatory partners with National Society of Black Physicists to launch annual research internship and recruitment opportunity Cambridge, MA (September 16, 2020)— The Smithsonian Astrophysical Observatory (SAO) and the National...
Huib van Langevelde named Director of the Event Horizon Telescope Project
Huib van Langevelde, a radio astronomer at the Joint Institute for VLBI ERIC (JIVE), has been named Project Director of the Event Horizon Telescope (EHT), a world-wide collaboration of more than 300 scientists from institutions around the world, known for...
Something is Lurking in the Heart of Quasar 3C 279
First Event Horizon Telescope Images of a Black-Hole Powered Jet One year ago, the Event Horizon Telescope (EHT) Collaboration published the first image of a black hole in the nearby radio galaxy M 87. Now the collaboration has extracted new information...
EHT Observing Campaign 2020 Canceled Due to the COVID-19 Outbreak
The global array of telescopes connected into the Event Horizon Telescope (EHT) was due to start observations at the end of March 2020 in order to expand and enhance the first set of results published approximately one year ago, including the first-ever...
Announcement of the Next Generation Event Horizon Telescope Design Program
The United States National Science Foundation (NSF) has announced the award of a $12.7M grant to architect and design a next-generation Event Horizon Telescope (ngEHT). The principal investigator of this program is the EHT Founding Director, Sheperd...
First-ever Image of a Black Hole Published by the Event Horizon Telescope Collaboration
The official press release from the Event Horizon Telescope Collaboration can be found here. Latest information is summarized on this page.
Global Web Tour of EHT Observatories
The Event Horizon Telescope is a global network of synchronized radio observatories that work in unison to observe radio sources associated with black holes with angular resolution comparable to their event horizons. The required extreme resolving power...
EHT In the Media