单词：Callisto's surface
单词：Callisto's surface 相关文章
Fog Found on Saturn's Moon Titan A study in Astrophysical Journal Letters reveals that Titan may be home to the familiar atmospheric condition known as fog--but made out of methane. Karen Hopkin reports The northeast just had its first big snow of th
60秒科学
Broadcast: Jan 10, 2003 By George Grow This is the VOA Special English ENVIRONMENT REPORT. American scientists say rising temperatures on Earth's surface are forcing animals and plants to move to cool
VOA2003（上）-社会广角
Gas escaping into space from the plumes is energized by Jupiters magnetosphere, creating an intense band of ionizing radiation that bombards a surface already soaked in emissions. If you went out relatively unprotected with, like a normal spacesuit f
自然百科2012年
WASHINGTON, Jan. 1 (Xinhua) -- Twin U.S. spacecraft to study the moon from crust to core put themselves into the lunar orbit on New Year's Eve and New Year's Day, the country's space agency said. The second Gravity Recovery And Interior Laboratory, o
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