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How to See the Center of the Galaxy

Huge as it is, the central black hole is still a thousand times too small to be seen with the Hubble Space Telescope. Plus, it's obscured by interstellar dust that blocks all visible light. But radio waves of about 1 millimeter wavelength can get through. Doeleman is organizing the Event Horizon Telescope, a project to create an international network of radio dishes that together will constitute a system with an effective diameter as large as Earth's.



