This is the first-ever image of a black hole as seen by the Event Horizon Telescope.

This is the first-ever image of a black hole as seen by the Event Horizon Telescope. (Image credit: NSF)

We don't know what the discovery is, but the team is calling it "groundbreaking."

The full announcement of the discovery will come during a set of news conferences at 9 a.m. The hosted by institutions around the world. The public can watch the discovery events online. The National Science Foundation and the European Southern Observatory will host independent Q&A panels after the press conferences.

A network of radio telescopes around the world studies black holes. The first ever image of a black hole was teased by the EHT in 2019. Regardless of what the discovery is, it will be fascinating. The EHT announcements will be streamed live on the internet, as well as the subsequent Q&A sessions.

There are 8 ways we know that black holes exist.

National Science Foundation webcast

May 12 at 9 a.m. The sun sets at 1300 GMT.

The press conference will be held in Washington, D.C., with live video broadcast online on the foundation's Facebook page.

European Southern Observatory webcast

May 12, 3 p.m. CEST is at 1330 GMT.

The press conference will be held in Garching bei München, Germany, which is outside of Munich. The live video will be available on the website and on the YouTube channel.

Consejo Nacional de Ciencia y Tecnología webcast

May 12 at 8 a.m. The time is 1300 GMT.

The CONACyT will host a press conference in Mexico City and broadcast it on its website.

Alma Observatory EHT discovery webcast

The South Pole Telescope at National Science Foundation's Amundsen–Scott South Pole Station in Antarctica, which is part of the Event Horizon Telescope array.

The South Pole Telescope at National Science Foundation's Amundsen–Scott South Pole Station in Antarctica, which is part of the Event Horizon Telescope array.  (Image credit: Dr. Daniel Michalik/NSF )

May 12 at 9 a.m. CLT ends at 1300.

The ALMA Observatory, which includes the ALMA of the NAOJ/ESO and the APEX of the ESO, will host its press. You can watch the live stream on the ALMA Observatory website.

EHT post-announcement Q&A panels

National Science Foundation is open 10:30 a.m. The time is 1430 GMT.

After the main announcement, the NSF will host a Q&A session with a panel of EHT researchers. It will be broadcast on the foundation's Facebook page.

4:30 p.m. European Southern Observatory Q&A. The time is 1430 GMT.

The public can watch a Q&A session with a panel of EHT researchers on its YouTube channel.

Follow Stefanie Waldek on social media. Follow us on social media.