Event Horizon 'Scope
@ehtelescope
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We image black holes (M87* (2019), Sgr A* (2022)) with an Earth-sized telescope https://t.co/q3YH4dHw3g https://t.co/pDMEvA87en
Joined July 2017
๐ญ Important Update from the Event Horizon Telescope Collaboration (EHTC):.We are responding to a recent reanalysis of our Sagittarius A* black hole image. For more details, please check our official response here:#BlackHole #Science #Astronomy #SgrA #EHT
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Scientists have obtained the first image of a black hole, using Event Horizon Telescope observations of the center of the galaxy M87. The image shows a bright ring formed as light bends in the intense gravity around a black hole that is 6.5 billion times more massive than the Sun
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We finally have the first look at our Milky Way black hole, Sagittarius A*. Itโs the dawn of a new era of black hole physics. Credit: EHT Collaboration. #OurBlackHole #SgrABlackHole .Link:
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Breaking news: the Event Horizon Telescope team unveils strong magnetic fields spiraling at the edge of Milky Wayโs central black hole, Sagittarius A*. This new image suggests that strong magnetic fields may be common to all black holes. #OurBlackHole #SgrABlackHole
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For the first time, EHT scientists have mapped the magnetic fields around a black hole using polarized light waves. With this breakthrough, we have taken a crucial step in solving one of astronomyโs greatest mysteries. Credit: EHT Collaboration. #MagnetizedBlackHole #EHTBlackHole
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From Brussels: "Finally! No more simulations. You are looking for the very first time, at a real black hole." #EHTblackhole #realblackhole #blackholecam
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It was a pleasure for us scientists to work with the animator Nicolle R. Fuller and the @NSF on this beautiful #NSFfunded animation showing how paths of photons are bent around the black hole to form a circular ring outlining the #realblackhole in M87. @BlackHoleCam #EHTblackhole.
How scientists at the #NSFFunded @ehtelescope captured the first-ever image of a black hole. #EHTBlackHole #RealBlackHole
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Happy Black Hole Friday! This simulated black hole movie shows what scientists think an accreting supermassive black hole system would look like up close. Retweet at 100% discount this Black Hole Friday!.Simulation by A. Chael, M. Wielgus, D. Palumbo, M. Johnson and K. Bouman
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Three years ago today, we published the first image of a black hole! ๐ฅณ #OTD.
Scientists have obtained the first image of a black hole, using Event Horizon Telescope observations of the center of the galaxy M87. The image shows a bright ring formed as light bends in the intense gravity around a black hole that is 6.5 billion times more massive than the Sun
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Second XKCD comic on @ehtelescope science within a week! Now, that's an honor! Fortunately, the press conferences did not go as #xkcd predicted last week! #EHTblackhole #realblackhole.
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#OnThisDay 4 years ago, we unveiled the very first image of a black hole!.
Scientists have obtained the first image of a black hole, using Event Horizon Telescope observations of the center of the galaxy M87. The image shows a bright ring formed as light bends in the intense gravity around a black hole that is 6.5 billion times more massive than the Sun
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There is a lot of excitement in the air about the announcement of the first results from the Event Horizon Telescope! We hope many of you will join us for the press events virtually via live online streams. ๐บ Here is a compact recap of available streaming links:.
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So what does our spiral pattern tell us about the magnetic fields around Sagittarius A*? The field is actually strong and ordered!. cr. Crazybridge Studios, EHT Collaboration #MagneticBlackHole #EHTblackhole.๐
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Light bending in warped spacetime around a black hole. Credit: Nicolle R. Fuller/NSF.
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In just under 12 hours, at 13:00 UT (9 AM Eastern Time), we will be revealing groundbreaking results! Choose between our main streams: .1) American stream: 2) European stream: 3) Japanese stream: โฆ.
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Itโs #BlackHoleWeek ! The journey to capture an image of a black hole is not an easy one. Learn about the challenges the Event Horizon Telescope has overcome to see the unseeable! ๐๐ก๐๐ก .#EventHorizonTelescope
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The EHT has released new images of the M87* black hole from observations taken in April 2018. The brightness peak of the ring has shifted by about 30ยบ compared to 2017, consistent with our theoretical understanding of variability from turbulent material around black holes.
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Kicking off #blackholeweek with some of our fave images of black holes (we're partial) over the past 5 years. Top L: First image of M87*, Top R: M87* in polarized light, Bottom R: Milky Way Galaxy's black hole SgrA*, Bottom L: SgrA* in polarized light. Credit: EHT Collaboration
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While they may look similar, the two black holes imaged by the Event Horizon Telescope are actually very different in size and distance! #OurBlackHole Credit: ESO/M. Kornmesser, EHT Collaboration
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One of the most common FAQs we get at the #EventHorizonTelescope โ How can you see a black hole if it's black? ๐ง This animation shows how our M87 black hole image is formed from light rays bent by the black holeโs immense gravity! #BlackHoleWeek ใฐ๏ธใฐ๏ธ
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New results: EHT scientists have imaged the distant blazar J1924-2914, revealing previously unseen details of the source structure. A blazar is a supermassive black hole ejecting a powerful jet along our line of sight that can outshine its entire galaxy! ๐ก๐๐ก
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The EHT produced a truly immense library of black hole simulations to study the black hole at the galactic center. Check out a few of them here!.#OurBlackHole #Science . Credit: Ben Prather, University of Illinois at Urbana-Champaign, EHT Theory Working Group
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Simulations that look almost identical can look vastly different with polarized light. Learn more in this video!. cr. CrazyBridge Studios, EHT Collaboration.๐
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Using 2017-2018 data, the EHT revealed turbulence in M87*โs accretion flow, reshaping the ringโs brightest region. This shows the power of multi-epoch observations to uncover black hole accretion and spacetime propertiesโa leap in black hole studies!
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As we've seen this Black Hole Week, black holes have gone from theory to image, from mysteries to measurements. Now, the EHT is entering a new era, where more telescopes around the worldย โ and maybe in space โ will capture time-lapse โmoviesโ of black holes. Popcorn, anyone?๐ฅ๐ฟ
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The EHT polarization images of M87* and Sagittarius A* indicate that these beasts have similar magnetic field structures. This suggests that the processes that govern how a black hole feeds and launches a jet may be universal features!. cr. EHT Collaboration
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The EHT will be announcing groundbreaking results Thursday May 12th, 13:00 UT. Tune in to one of our live streams! Choose a stream here: #EventHorizonTelescope.
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Have you heard that something is brewing on April 10th? It's no joke! See this media advisory from the Event Horizon Telescope collaboration via @NSF and @ESO here: & #EHTblackhole #MondayMorning.
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Of the 11 observatories planned for the Event Horizon Telescope array, 8 participated in #EHTblackhole observations in 2017. Here is a collage (with older photos!) from the #NSFfunded animation made at @saoastro, to be found on our Youtube channel --
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Composite multi-wavelength image showing how the M87 system looked, across the entire electromagnetic spectrum, during the Event Horizon Telescopeโs April 2017 campaign.
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The EHT has revealed the strong magnetic fields of the M87* black hole in a new light! An analysis of light in circular polarization supports earlier findings that the magnetic field near M87* is strong enough to occasionally stop the black hole from swallowing up nearby matter.
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With its 4 million solar masses, Sgr A* is much less massive than M87, the 6.5 billion solar mass black hole also imaged by the EHT. Imaging such a small black hole (relatively speakingโฆ) posed a lot of challenges, hereโs why! #BlackHoleWeek .cr. @CenterForAstro
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Let's zoom in all the way to Sagittarius A*, the supermassive black hole at the heart of the Milky Way. Although it's "only" ~26000 light years away, you have to zoom in very far to see it! . #OurBlackHole #SgrABlackHole Credit: Sara Issaoun, SAO
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6 years ago this week, the Event Horizon Telescope released the world's first black hole image๐๐ #blackhole #astronomy #astrophysics
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๐ก๐๐ก After a few days of bad luck with the weather across the globe, we are starting our 2023 EHT campaign observing supermassive black holes tonight!.Picture (@gopastro ): the LMT on the Sierra Negra in Mexico is getting ready.
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About 27,000 light years away, with a mass of more than 4 million Suns, lies the Milky Wayโs supermassive black hole Sagittarius A*. If you were to approach it, youโd be deceived by its size - the shadow is roughly twice as big as the black holeโs actual surface!โซ๏ธ
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The EHT observes in radio light, invisible to our eyes. Go on a journey to the heart of the radio Milky Way at increasingly higher frequencies, from the intricate structures of radio filaments and bubbles down to the core, where Sgr A* is lurking #BlackHoleWeek.cr. @Radboud_Uni
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This inforgraphic shows an artist's depiction of a black hole an its immediate surroundings (from @ESO / @HUBBLE_space / M. Kornmesser / N. Bartmann). Find more on #blackhole science on the EHT website:
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What exactly is polarization? Learn how light waves have a direction of oscillation that teaches us about magnetic fields near our Sagittarius A* black hole!. cr. Fiks Film, EHT Collaboration.๐
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Though not technically a photograph, here's Event Horizon Telescope's humble but unique contribution to #WorldPhotoDay 2019! ๐ท๐ก #EHTblackhole #RealBlackHole #WorldPhotographyDay #WorldPhotographyDay2019 [ Find many different formats here: ]
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This image is accompanied by two publications in ApJL:.Sgr A* Paper VII:ย Sgr A* Paper VIII:ย Read the press release here:
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One year ago today!.
We finally have the first look at our Milky Way black hole, Sagittarius A*. Itโs the dawn of a new era of black hole physics. Credit: EHT Collaboration. #OurBlackHole #SgrABlackHole .Link:
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Did you know the EHT partners with many telescopes on the ground and in space to get a full view of the M87 black hole and its environment? The first images of M87* have taught us a lot about how black holes feed and power jets! #BlackHoleWeek #EventHorizonTelescope.Cr: EHT MWG
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Joitn the Reddit Ask Science โAsk Me Anything (AMA)โ thread following up on today's press events. Moderated by @ESO, at 20:00 CEST some of the EHT scientists behind the new results will begin answering your questions on Reddit:
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The #EHTblackhole results presented last week came in 6 papers published by @AAS_Publishing (#ApJL). All 6 papers are freely accessible here: EHT team member Daniel Palumbo summarized the main themes covered in all 6 papers in this @astrobites article:.
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One of the EHTโs lesser-known targets is OJ 287. Its periodic flares make it a compelling candidate for a supermassive black hole BINARYโtwo supermassive black holes orbiting one another! .Artistโs conception (not to scale) by Andres Rojas. #BlackHoleWeek
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This simulation shows a black hole image in total intensity (or โnormalโ light, left) and in circular polarization (right). The blue and red colors of the circular polarization movie correspond to light rotating clockwise and counterclockwise, respectively. Credit: Angelo Ricarte
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An international team anchored by the Event Horizon Telescope (EHT) Collaboration has now imaged the heart of the nearby radio galaxy Centaurus A in unprecedented detail in a now released Nature Astronomy paper: Janssen et al. (EHTC) (2021) DOI: 10.1038/s41550-021-01417-w
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One of the most common FAQs we get at the #EventHorizonTelescope โ How can you see a black hole if it's black? ๐ง This animation shows how our M87 black hole image is formed from light rays bent by the black holeโs immense gravity! #BlackHoleWeek ใฐ๏ธใฐ๏ธ.
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A massive jet springs from the core of the galaxy M87. This jet hurls particles and energy away from the galaxyโs central black hole at breathtaking speeds. Some of these jets grow so long that they eclipse the size of their own galaxy! .Credit: ALMA (ESO/NAOJ/NRAO), Goddi et al.
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Happy Black Hole Week! This is Messier 87; despite being located about 55 million light years away, the EHT peered at its beating heart in 2017 for its first image. Did you know that the location of the brightest region around the black hole, and its shadow, can change yearly?๐ญ
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Astronomers at the Greenland Telescope (GLT), located 1200km inside the Arctic Circle, can experience temperatures down to -65ยบC on clear nights๐ง๐ฌ๐ฑ. GLT has widened the EHT's earth-sized telescope lens beyond the North Pole, enabling higher resolution pictures of black holes.
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Meet the Large Millimeter Telescope (LMT), located on a dormant volcano in Sierra Negra, Mexico๐๐ฒ๐ฝ!. The LMT's dish is as long as an Olympic sized swimming pool and its distance from other EHT telescopes has made it crucial in observing the shadows of black holes.
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Ever wonder what a black hole image looks like in 4K quality? This simulation shows what one might look like. Image credit: Bronzwaer, Moscibrodzka, Davelaar and Falcke, Radboud University 2017. #blackhole #eht #eventhorizon #astronomy #relativity #space
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A year ago on this day, we revealed the first image of polarization structure on the edge of a black hole. The spiral pattern of the polarized light around M87* tells us about the magnetic fields that help feed the black hole and generate its powerful relativistic jet.#OTD
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"The Edge of All We Know," a documentary starring Event Horizon Telescope Founding Director Shep Doeleman and directed by Harvard Philosophy Professor Peter Galison was released this weekend on Netflix! The film is currently ranked #8 in Movies. Congrats to everyone in the film!
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Can you spot the astronomers? . Here, two EHT team members pose next to the Submillimeter Telescope, a 10-meter dish perched atop Mount Graham in Arizona. #WomenInSTEM #BlackHoleWeek.๐ธ @SaraIssaoun
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Ask about our new black hole photo! The next event starts in just under an hour!.1) r/AskScience Ask Me Anything 17:30 UTC (1:30 PM Eastern Time): 2) CfA Q&A 19:00 UTC (3 PM Eastern Time): .#OurBlackHole.
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Behold Perseus A, one of the closest active supermassive black holes, at 230 million light years away. Composite images like this one from the NRAO, Chandra, Hubble, and the EHT can help us study black holes and their environments, which influence each other.๐ฐ๏ธ
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Tonight we will start the EHT 2022 observing campaign, targeting our favorite black holes with 11 stations around the world! ๐ก๐๐ก .Image compilation by Thalia Traianou. #EHT2022
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To take an image ๐ธ of a black hole, you need to have a telescope as large as the Earth! To do this, we join together telescopes from all over the globe into one massive telescope array ๐ก๐๐ก.#EventHorizonTelescope #BlackHoleWeek. Composite by K. Johnson
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The first black hole ever photographed lives in this galaxy, Messier 87! . Jets like the blue one shown here launch from center of galaxies. They are crucial for regulating galactic star formation. Credit: NASA, ESA, Hubble Heritage Team.#BlackHoleWeek #astronomy
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Scientists use ~1 millimeter radio waves, which are beyond the scope of human eyesight, to peer through the blazing-hot cloud that surrounds black holes. Credit: Chi-kwan Chan/University of Arizona. #space #innovation
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Atacama Large Millimeter/submillimeter Array (ALMA, @almaobs) / Cerro Chajnantor, Chile @ 5000 m / array of fifty-four 12-m and twelve 7-m diameter dishes / partnership between Europe (@ESO), North America (@TheNRAO), East Asia (@prcnaoj_en) and Chile / image credit: C. Padilla
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With the one-year anniversary of #EHTblackhole around the corner, the Event Horizon Telescope Collaboration has some interesting new results to share! Something is lurking in the heart of quasar 3C 279. Check what it is on our official website:
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Did you know: At its peak, manually moving the EHT hard drives may have been the fastest data transfer ever?. Each bank of hard drives holds 64 terabytes of raw data. Altogether, thatโs as much data as ~40000 lifetimes worth of selfies! Credit: MIT Haystack #BlackHoleWeek
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New EHT test observations have achieved the highest-resolution detections of black holes from Earth. #blackholes #EHT #eventhorizon 1/๐งต. Image: Artist's impression showing radio signals from a distant galaxy detected by radio observatories worldwide. Credit: ESO/M. Kornmesser
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Across the globe, newspapers touted the scientific achievement of capturing the first image of a black hole. Over four billion people are estimated to have seen this historic image! . Image Credit: Eduardo Ros. #news #ScienceIsAwesome
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Today, our Milky Way black hole Sgr A* gets the spotlight on #BlackHoleWeek! We just wrapped up our 2023 observing campaign, in which we observed Sgr A* simultaneously with @NASAWebb, @chandraxray, and other partners, as it flares across the electromagnetic spectrum.
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This ambitious crossover shows what the Event Horizon Telescope would look like if all of its radio dishes from around the world were in one place. #OurBlackHole #EventHorizonTelescope Credit: ESO/M. Kornmesser et al.
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The latest test of general relativity in the strong gravitational field regime near black holes (Psaltis et al. 2020) constrains deviations from GR by a factor of 500 better than historical constraints!.Image Credit: .Dimitrios Psaltis and Raquel Fraga-Encinas
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Atacama Pathfinder Experiment (APEX) / Cerro Chajnantor, Chile @ 5100 m / single dish, 12-m diameter / operated by @ESO on behalf of Max Planck Institut fuer Radioastronomie (@maxplanckpress), @OnsalaRymd, and ESO itself / / image credit: C. Durรกn (ESO)
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[Part 1] In just over one hour, at 13:00 UTC, tune in to the live stream of our groundbreaking results! Choose between our main streams: .1) American stream: 2) European stream: 3) Japanese stream: โฆ.
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#EHTblackhole Brussels: European Research Council / @ERC_Research Youtube channel (, @ESO's website ( and Facebook ( -- with some questions for the panelists taken from #askEHTeu.
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At Chile's Atacama Large Millimeter Array (ALMA), the more the merrier - they have 66 telescopes!. During EHT observations, this army of radio dishes has their antennae oriented to behave as a single instrument. Its sensitivity helped determine the shape of a black hole's ring.
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Though these lights look like stars, they are actually small reflective stickers that help test the alignment of the Large Millimeter Telescopeโs dish. If there are any small imperfections in the dish, the pictures might come out blurry or blemished. Credit: D. Sanchez-Arguelles
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#OnThisDay two years ago!.
For the first time, EHT scientists have mapped the magnetic fields around a black hole using polarized light waves. With this breakthrough, we have taken a crucial step in solving one of astronomyโs greatest mysteries. Credit: EHT Collaboration. #MagnetizedBlackHole #EHTBlackHole
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We are here in Granada, Spain! After 2.5 years, the EHT collaboration is finally meeting again in person, to discuss all things black holes and next big science steps! The meeting kicks off today, in beautiful sunny weather โ๏ธ .#EventHorizonTelescope
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Thankfully for us here on Earth, black holes are very far away. You have to zoom in quite a bit in order to see one! Follow us as we zoom in towards the supermassive black hole at the heart of the M87 galaxy ๐ธ.#EventHorizonTelescope #BlackHoleWeek #M87blackhole
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After two pandemic years, the 2020 Einstein Medal was finally presented to the Event Horizon Telescope at our 2022 EHT Collaboration Meeting in Granada, Spain. Pictured are Spokespersons Shep Doeleman (holding the medal), Heino Falcke (holding the certificate), and the EHTC.
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The Event Horizon Telescope Collaboration congratulates Roger Penrose, Reinhard Genzel and Andrea Ghez on the Nobel Prize in Physics! The EHTC researches complementary aspects of Black Holes, and is inspired by todayโs announcement to further investigate Galactic Center secrets.
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EHTใฎ็ ็ฉถ่
ใๅๅ
ใไฝฟใฃใฆใใฉใใฏใใผใซๅจ่พบใฎ็ฃๅ ดใๅใใฆๆใๅบใใพใใใ.ๅฎๅฎใฎ่ฌใ่งฃๆใใใใใฎๅคงใใชไธๆญฉใงใใ.ใฏใฌใธใใ๏ผEHT Collaboration. #MagnetizedBlackHole #EHTBlackHole #M87Polarization #BlackHolePolarization #PolarizationOfTheRing
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EHT(์๊ฐ์งํ์ ๋ง์๊ฒฝ ํ๋ก์ ํธ) ๊ณผํ์๋ค์ ์ฌ์์ต์ด๋ก ํ๊ด๋ ๋น์ ์ด์ฉํ์ฌ ๋ธ๋ํ ์ฃผ๋ณ์ ์๊ธฐ์ฅ ์ง๋๋ฅผ ๋ง๋ค์์ต๋๋ค. ์ด ์ปค๋ค๋ ์ง์ ์ผ๋ก ์ฐ๋ฆฌ๋ ์ฒ๋ฌธํ๊ณ์ ๊ฐ์ฅ ํฐ ๋ฏธ์คํ
๋ฆฌ๋ฅผ ํ ๊ฒฐ์ ์ ์ธ ํ ๊ฑธ์์ ๋ด๋์์ต๋๋ค.
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The EHTC studied the spectacular flare observed during its second campaign on M87, involving over 25 ground-based and space-based telescopes. The authors report the first observation in over a decade of a high-energy gamma-ray flare. #BlackHole #astronomy
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This video with stunning visuals takes you on a wild ride from our radio-telescopes on Earth to Sgr A* in our Galactic Center! #BlackHoleWeek .cr. @BHPIRE @NSF
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Join us in congratulating Lia Medeiros, NSF Astronomy and Astrophysics Postdoctoral Fellow at the Institute for Advanced Study, for being on the shortlist for the 2022 @Nature Inspiring Women in Science award in the scientific achievement category!
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ALMA is the largest ground-based telescope in the world, with 66 antennas spanning 16 kilometers. This panorama causes the Milky Way to appear beautifully curved over the state-of-the-art telescope. Credit: P. Horรกlek/ESO. #astronomy #telescope #milkyway #cosmos #space #stars
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Almost three thousand meters above sea level, far away from the light pollution of civilization, the South Pole is the perfect place for EHT astronomy. Image credit: Daniel Michalik / South Pole Telescope.
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Let's travel to Spain's sunny Sierra Nevada mountains with the IRAM-30 Meter Telescope, the most sensitive single dish in the EHT๐ช๐ธ!. The instrument is adjusted to the width of a human hair and weighs about 800 tons, far more than a fully loaded Airbus A380 airplane.
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NOEMA, located in the French Alps, has "vision" sharp enough to see someone's computer 500 km away in Venice๐๐ป. Its 12 dishes operate together like a single dish with a diameter of 1.7 kilometers, making NOEMA the most sensitive array of its kind in the northern hemisphere.
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For the first time, the EHT has investigated how well a range of theories in physics (including Einstein-based theories and string-based theories) fit with observations of the black hole M87*. Credit: ยฉ P. Kocherlakota (Univ. Frankfurt), EHT Collaboration & Fiks Film 2021
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Ever wonder how to study the nature of spacetime and the edges of physics? These mischievous black holes have a clue! . Join the Event Horizon Telescope for #BlackHoleWeek2025, May 5th-9th, as we highlight pieces of the black hole science jigsaw puzzle.๐
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Skyscrapers aren't the only towering structures in Seoul, South Korea - the KVN Yonsei telescope makes its home in the bustling city๐ฐ๐ท๐๏ธ. The telescope is the furthest east in the EHT, filling an important gap between Europe and Hawaii to make more accurate black hole images.
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Centaurus A is the closest radio galaxy to Earth. Radio galaxies feature two-sided jets that are ejected from the galaxyโs central black hole and measure up to millions of light years long. These jets are theorized to spread energy and affect the growth of their host galaxies.๐ซ
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That's a wrap for #EHT2022, the first time with 11 stations! Thank you to all the observers, engineers & telescope staff who worked tirelessly to make these observations possible at our EHT sites & multiwavelength partners! ๐๐๐.Time to ship all the data โ๏ธ.Cr. Thalia Traianou
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