Event Horizon Telescope

@ehtelescope.bsky.social

We are the Event Horizon Telescope: a global collaboration that captured the first-ever image of a black hole using a virtual Earth-sized telescope. Instagram, Facebook, Twitter, Mastodon: ehtelescope eventhorizontelescope.org

Last week, the EHT Collaboration gathered in Seoul, South Korea to explore new horizons (pun intended). Members came together to discuss the latest advances in black hole science, instrumentation, and future observations. Stay tuned; there are exciting results on the horizon! #EHT2026

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Timelapse of the IRAM 30-meter Telescope on Pico Veleta during a typical night of EHT observations. With its large collecting area and wide-angle optics, it’s one of the most sensitive single dishes in the array. Now filming: #M87Movie Video credit: Manuel Castillo-Fraile / IRAM 30m

Now filming on location at the top of the world… The Greenland Telescope is helping capture the first-ever movie of supermassive black hole Messier 87. On-site cast (Image #2, L → R): Minchul Kam & Keiichi Asada Remote observing stations: -ASIAA -CfA | Harvard & Smithsonian #M87MOVIE

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🔤 EHT A-Z We’re breaking down the science behind the Event Horizon Telescope - one letter at a time. 📡 Y is for Years of Observations The EHT has observed its targets across multiple years. Together, these data help us track how black holes evolve over time.

Five years ago this week, we released the first polarized image of the black hole in M87*, revealing the structure of magnetic fields at the edge of a black hole. Just six months ago, new results from 2018 and 2021 showed something incredible- the environment around M87* is evolving.

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Eleven telescopes. Countless scientists, engineers, and operators. One goal: a movie of the black hole in M87. The M87 MOVIE campaign is now underway. Participating telescopes: ALMA • APEX • GLT • JCMT• KP12M • KVN • LMT • NOEMA • PV30M • SMA • SMT Follow along as the campaign unfolds. #M87Movie

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🔤 EHT A-Z We’re breaking down the science behind the Event Horizon Telescope - one letter at a time. 📡 X is for X-ray Emission Sgr A*, the supermassive black hole at our galaxy’s center, emits X-rays. Astronomers often observe X-ray flares when the emission suddenly brightens.

🔤 EHT A-Z We’re breaking down the science behind the Event Horizon Telescope - one letter at a time. 📡 W is for Water Vapor Our atmosphere sustains life, but water vapor absorbs the faint radio signals from black holes. That’s why our telescopes typically sit on high, dry mountaintops.

🔤 EHT A-Z We’re breaking down the science behind the Event Horizon Telescope - one letter at a time. 📡 V is for VLBI VLBI stands for Very Long Baseline Interferometry. By connecting radio telescopes around the world, we can resolve the shadow of a black hole.

🔤 EHT A-Z We’re breaking down the science behind the Event Horizon Telescope - one letter at a time. 📡 U is for Universe The observable universe contains trillions of galaxies, most thought to host a supermassive black hole.

Today we mark the International Day of Women and Girls in Science by acknowledging the invaluable work of the many women in the EHT - some of them highlighted in this recent conference photo. Contributions cover all aspects needed to advance our understanding of black holes. #WomanInSTEM

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🔤EHT A–Z We’re breaking down the science behind the Event Horizon Telescope - one letter at a time. 📡 T is for Time Variability Signals from material around a black hole change over time. By tracking these changes, scientists can uncover the extreme physics near black holes.

Previously, we could not connect the bright ring of emission in M87 with the jet seen at larger scales. In a new study published today, a team of EHT scientists led by Saurabh found evidence of the jet base using new 2021 data that included additional telescopes.

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A team of EHT scientists led by J.-L. Gómez, I. Cho and E. Traianou has now published striking new images of OJ 287, where the interplay between traveling shocks and instabilities in the jet plasma shows remarkable polarization patterns. Credit: EHT Collaboration | Figure: E. Traianou

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The EHT Collaboration recognizes outstanding contributions through the 6th Annual EHT Early Career & Outstanding PhD Awards. Featured here are two 2025 Outstanding PhD Theses recipients: Dominic Chang and Aristomenis Yfantis. Congrats to all!

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The EHT Collaboration recognizes outstanding contributions through the 6th Annual EHT Early Career & Outstanding PhD Awards. Featured here are two 2025 Outstanding PhD Theses recipients: Marianna Foschi and Rohan Dahale. Congrats to all!

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The EHT Collaboration recognizes outstanding contributions through the 6th Annual EHT Early Career & Outstanding PhD Awards. Featured here are two 2025 Early Career Research & Leadership Award recipients: Hendrik Müller and León Sosapanta Salas. Congrats to all!

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