Historical eventApril 102019

Event Horizon Telescope

Scientists from the Event Horizon Telescope project released the first image of the black hole at the center of the galaxy M87.

In context

When
Wednesday, April 10 20197 years ago
Category
Historical eventA dated happening — a battle, treaty, launch, discovery, disaster or decision — recorded on this calendar day.
Era
21st century · 2010s
Recorded from
Wikipedia “On this day” feed

At a glance

Dates: From 2019.

What happened

The Event Horizon Telescope (EHT) is a telescope array consisting of a global network of radio telescopes. The EHT project combines data from several very-long-baseline interferometry (VLBI) stations around Earth, which form a combined array with an angular resolution sufficient to observe objects the size of a supermassive black hole's event horizon.

April 10 through the years

Other entries on the same calendar day, in order.

  1. 1991South Atlantic tropical cyclone
  2. 1991Moby Prince disaster
  3. 1992First Nagorno-Karabakh War
  4. 1998Good Friday Agreement
  5. 2009Josefa Iloilo
  6. 2009President of Fiji
  7. 2010Polish Air Force
  8. 20162016 Afghanistan earthquake
  9. 2016Puttingal temple fire
  10. 2019Event Horizon Telescope
  11. 20232023 Louisville bank shooting

Also in 2019

  • March 14Cyclone IdaiCyclone Idai makes landfall near Beira, Mozambique, causing devastating floods and over 1,000 deaths.
  • September 14Abqaiq–Khurais attackDrone attacks on major processing facilities at Abqaiq and Khurais forced Saudi Arabia to cut more than half of its oil production.
  • September 14YemenYemen's Houthi rebels claim responsibility for an attack on Saudi Arabian oil facilities.
  • November 17COVID-19The first known case of COVID-19 is traced to a 55-year-old man who had visited a market in Wuhan, Hubei Province, China.
  • October 22Same-sex marriage in Northern IrelandSame-sex marriage is legalised, and abortion is decriminalised in Northern Ireland as a result of the Northern Ireland Assembly not being…
  • August 10Typhoon LekimaHaving already caused severe flooding in the Philippines, Typhoon Lekima made landfall in Zhejiang, China, killing 45 people in the provi…
  • August 10Jeffrey EpsteinJeffrey Epstein, an American financier and convicted sex offender, was found dead in his cell at the Metropolitan Correctional Center, Ne…
  • August 102019 Bærum murder and mosque attackPhilip Manshaus shoots his stepsister and attacks a mosque in the Bærum mosque shooting.

Everything we record for 2019 →

Sources

Cite this page

“Event Horizon Telescope”, What's On This Date, https://whatsonthisdate.com/app/event/event-horizon-telescope-2019-april-10, accessed October 27, 2026.

Cite the underlying source as well — the source links above go to the record this entry is adapted from.

Questions about this entry

When did Event Horizon Telescope happen?

April 10 2019 — 7 years ago, on a Wednesday.

Where does this text come from?

Wikipedia “On this day” feed. Summaries are short adaptations that link back to the source, not reprints.

How do I cite this page?

Use the ready-made citation near the sources at the bottom of the page, and follow the source link to cite the underlying record as well.

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