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【Earth&Sky】新月美丽了1月30日
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听写填空,只写填空内容,不抄全文,4个单词/词组+1个句子,不用写标号~
Friday, January 30, 2009.
If your sky is clear after sunset tonight, you can't miss the blazing planet Venus in the western [----1----]. And you'll also find the waxing crescent moon nearby. Venus is the brightest point of light visible in Earth's sky.
With [----2----] or even with the eye alone, you might spot the soft glow of earthshine on the darkened portion of tonight's crescent moon. Earthshine is sunlight that's reflected from Earth, back to the moon. As seen from Earth this evening, the moon is about 20% illuminated by sunlight and 80% in shadow. But as seen from the moon, it's opposite: Earth is 80% illuminated and 20% in shadow.
[----3----] Venus is about 40% illuminated by sunlight as seen from Earth now. Unlike the moon – which is now waxing or increasing toward full – Venus is waning. The crescent of Venus – visible through telescopes – will shrink throughout February and March. [----4----], as its phase decreases, Venus will brighten in Earth's sky over the coming weeks.
That's because Venus is [----5----] behind Earth in orbit right now. It's coming closer to Earth, so its larger disk size will more than make up for its shrinking crescent.
I'm Deborah Byrd, and I'm Joel Block from E&S, a clear voice for science. We are at E&S. org.
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