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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: 多國的
Astronomer：天文學家
Observatory：天文臺
Proxima Centauri：比鄰星（半人馬座）
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