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Geoffrey Crew (L Rear), research scientist at MIT Haystack Observatory, Violette Impellizzeri (L Front), astronomer at the Atacama Large Millimeter/submillimeter Array (ALMA), and Xavier Barcons (R), director general of the European Southern Observatory (ESO), attend a press conference in Santiago, capital of Chile, on April 10, 2019. Astronomers said on April 10, 2019 that they captured the first image of a black hole, unveiling the first direct visual evidence of an unseeable cosmic object and its shadow. (Xinhua/Jorge Villegas)
