Planetary news,06-2／行星新資訊06-2
Credit: NASA/GSFC/Johns Hopkins University/Carnegie Institution of Washington
(1) Mercury's atmosphere is so thin, it would have vanished long ago unless something was replenishing it. That something could be the solar wind. 水星擁有一個不斷由太陽風保充的極稀薄大氣． http://www.nasa.gov/mission_page ... etic_tornadoes.html
發表於 2009-6-6 10:57:54