M87 Black Hole: How the Event Horizon Telescope Captured the First Image

A century after Einstein, we aimed radio eyes at M87 and saw the unseeable. This is the inside story of how the first black hole image was made. From Schwarzschild’s singularity to S2’s redshifted sprint past the Milky Way’s center, Galaxy traces the breakthroughs that set the stage for April 2017. Eight dishes across Earth, phased ALMA boosting sensitivity tenfold, hydrogen masers syncing time, and helium-filled drives hauling petabytes off mountaintops. Inside the correlators at Haystack and Max Planck, noise is crushed, gaps are bridged with careful algorithms, and four independent imaging teams work blind to avoid bias. Then, the ring appears. Why did 1.3 mm waves matter? How does gravitational lensing let us see “behind” the shadow? What did the M87 ring confirm about general relativi