一位英国天文学家在分析一台太阳光摄谱仪时，注意到一种特殊的光谱线模式，它与图书馆里的任何一种都不匹配。
A British astronomer was analyzing a spectrograph of sunlight, and he noticed a particular pattern of spectral lines that didn't match anything in the library.
探索地平线之外到底有什么的好奇心把早期的波利尼西亚人第一次带到夏威夷海岸，同样的好奇心又驱使当今的天文学家们去探索太空。
The same curiosity to find what lies beyond the horizon that first brought early Polynesians to Hawaii's shores inspires astronomers today to explore the heavens.
历史学家在日期上画了一条水平线来记住这天。
The historian drew a horizontal line on the date to remember it.
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