在接下来的两周内，您能帮助科学家及宇航员们建立起一张全球光污染地图，因为他们发现夜空不再那么的清澈透明。
During the next two weeks, you can help build a map of global light pollution, assisting scientists and astronomers as they monitor the loss of virgin night skies.
这些地衣测试是在西班牙和犹他州的火星沙漠研究站进行的。 两个研究人员穿着者宇航服如同宇航员般的过了两周。
The lichen tests were conducted in Spain and at Utah’s Mars Desert Research Station, where two of the researchers donned spacesuits and lived for two weeks in the field as astronauts.
最后结果在佛罗里达州宣布，日期是第一次航天飞机飞行30周年以及苏联宇航员尤里·加加林成为绕地球轨道飞行第一人50周年纪念日。
The announcement in Florida came on the 30th anniversary of the first space shuttle flight and on the 50th anniversary of Soviet cosmonaut Yuri Gagarin becoming the first human to orbit the earth.
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