Less than 20 years after first finding a planet beyond our solar system, astronomers are poised to hit a big milestone - the discovery of alien world no. 500.
首次发现太阳系以外的行星后不到20年,天文学家们正准备打造一个重要的里程碑——第500个外星世界的发现。
At that rate, no. 500 could be announced before October is out - just a month or so after another watershed moment, the discovery of the first potentially habitable alien planet.
按照这个速度,第500颗行星可能在10月份公布,正好比另一个转折事件——第一颗可能适合人类居住的外行星的发现——晚一个月左右。
At that rate, no. 500 could be announced before October is out - just a month or so after another watershed moment, the discovery of the first potentially habitable alien planet.
按照这个速度,第500颗行星可能在10月份公布,正好比另一个转折事件——第一颗可能适合人类居住的外行星的发现——晚一个月左右。
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