Planetary news 10-1 / 行星新資訊 10-1
Credit: NASA
(1) Ice Found on Asteroid.發現小行星有冰存在．
http://www.sciencenews.org/view/generic/id/48174/title/Ice_confirmed_on_an_asteroid
Credit: NASA
(2) Spitzer Discovers Saturn's Largest Ring. 土星的超巨紅外環．
http://science.nasa.gov/headlines/y2009/07oct_giantring.htm
香港天文學會
月球行星組
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