The Event Horizon Telescope – A Global Network of Radio Telescopes – National Radio Astronomy Observatory

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The Event Horizon Telescope – A Global Network of Radio Telescopes

The Event Horizon Telescope – A Global Network of Radio Telescopes

Diagram of the EHT Network used for the observations in 2017.

Diagram of the EHT Network used for the observations in 2017.

Credit: NRAO/AUI/NSF

Radio Telescopes and Technology

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More Radio Telescopes and Technology Images & Videos

Bright point of light in the upper left corner with jets. The jet splits into red and blue wavelengths moving at the same angle towards the bottom right corner. As they hit a mostly transparent, pinkish bubble of gas they twist in different amounts until they leave the bubble and continue off screen, no longer twisting but now at different angles.

Astronomers Detect Magnetic Fingerprint of a Cosmic Explosion for the First Time

This illustration traces the universe’s evolution from the Big Bang to the present day, highlighting REBELS-25, a very distant galaxy seen during the Epoch of Reionization 13 billion years ago. New deep observations with the NSF VLA and ALMA reveal that REBELS-25 already had an enormous reservoir of cool molecular gas—the direct fuel for star formation—when the universe was just 700 million years old.

Cosmic Dawn Fuel Discovery Unlocks Early Galaxy Growth Secrets

A bright, icy-looking object floats in deep space at the center of the image, surrounded by a large, glowing blue and pale orange cloud that fades softly into the dark background. The blue part of the cloud is largest and mostly on the left-hand side. The orange part is smaller and on the right-hand side. Small stars are scattered throughout the black sky.

Artist’s Impression of Interstellar Comet 3I/ATLAS

Artist’s illustration of the binary star system WR 112. A bright blue-white Wolf-Rayet star and a nearby, smaller companion star orbit each other in space. Their powerful stellar winds collide between them, creating a glowing region where dust forms and streams outward in a spiral plume. A magnified inset in the top right corner, shows the dust grains against a reddish background, highlighting mostly extremely tiny, nanometer-sized particles along with a smaller number of grains about 100 times larger.

Artist impression of WR 112

NRAO Dedication, 17 October 1957

NRAO Dedication, 17 October 1957

Construction of First VLBA Antenna

Construction of First VLBA Antenna

North Liberty VLBA antenna

VLBA Antenna in North Liberty, Iowa

View of the Milky Way Galaxy seen from the ALMA Array Operations Site (AOS). The AOS is located on the Chajnantor plateau of the Chilean Andes, at an altitude of 5000 meters, making it the second highest building in the world. Light from the galaxy core shines even more brightly when captured at an altitude of 5000 meters – with so much less atmosphere to penetrate.

ALMA Looks at the Milky Way