On July 2, 2019, skywatchers in the beach city of La Serena, Chile, looked up at 4:38 p.m. local time to see a black circle in the sky.
On July 2, 2019, skywatchers in the beach city of La Serena, Chile, looked up at 4:38 p.m. local time to see a black circle in the sky.
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