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A multinational team of astronomers working at the European Southern Observatory in Chile discovered an Earth-sized planet in orbit around a star four light-years away. Proxima Centauri b is a bit bigger than Earth and orbits within its parent’s habitable zone. That will make it the focus of scientific efforts to search for life elsewhere.
Multinational: 多国的
Astronomer：天文学家
Observatory：天文台
Proxima Centauri：比邻星（半人马座）
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