A Virtual, Earth-Sized Telescope (IMAGE)

University of Arizona

A Virtual, Earth-Sized Telescope

Caption

The South Pole Telescope and the Atacama Pathfinder Experiment joined together in a "Very Long Baseline Interferometry" experiment for the first time in January. The two telescopes simultaneously observed two sources -- the black hole at the center of the Milky Way galaxy, Sagittarius A*, and the black hole at the center of the distant galaxy Centaurus A -- and combined their signals to synthesize a telescope 5,000 miles across.

Credit

Dan Marrone/UA

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