ScienceCasts: 寻找地球... 2.0

宇航员早就希望,可以在宇宙找到一颗与地球相似的行星-远处的一颗蓝点,可能蕴藏着像我们这样的生命。美国宇航局的开普勒航天器可能找到了一颗类似于我们的行星。 欲了解更多信息,请访问http://science.nasa.gov/。 点击这里查看更多视频:https://alugha.com/NASA

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