Capturing direct visuals of these cosmic entities required more than ten years of collaborative work using the Event Horizon Telescope network. The linked radio dishes operated as a single planet-sized instrument capable of resolving the shadows cast by supermassive black holes. Scientists achieved imaging success for both the Milky Way's core and the distant galaxy M87, opening new pathways to assess the environmental impact of black holes. Researchers project that ongoing technological progress will enable the recording of real-time black hole movies by the early 2030s.
Key points
Synchronized global radio telescopes can overcome severe observational barriers to resolv…: Synchronized global radio telescopes can overcome severe observational barriers to resolve objects that trap all nearby light.
Empirical imagery of black hole shadows enables scientists to rigorously evaluate existin…: Empirical imagery of black hole shadows enables scientists to rigorously evaluate existing theoretical astrophysics predictions.
Continued technological improvements may allow researchers to capture moving footage of b…: Continued technological improvements may allow researchers to capture moving footage of black holes by the early 2030s.
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Introduction
Black holes are one of the universe’s most exotic and elusive objects. When nothing, not even light, can escape their powerful gravitational grasp, taking a picture of one seems unimaginable. But an image of a black hole, or more accurately its shadow, could offer insights that theory alone may not provide when testing predictions. So how can it be done?
Harvard astrophysicist Shep Doeleman and a team of 250 researchers achieved this extraordinary feat by linking a group of radio telescopes around the world. This network, called the Event Horizon Telescope, produced the first image of a supermassive black hole in the galaxy M87, around 55 million light-years away, and the first image of the black hole at the heart of our galaxy. In this episode, Doeleman tells co-host Janna Levin how he turned the Earth into a telescope capable of seeing a black hole, the incredible level of science and collaboration that was required to achieve this, how the images have furthered our understanding of these exotic objects, and how movies of black holes may be possible by…
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