Planetary news,11-2／行星新資訊 11-2

CKYan

Credit: Wei Luo, Northern Illinois University
(1) New computer-developed map shows more extensive valley network on Mars.  上古火星的海洋,流域與降雨。
http://www.eurekalert.org/pub_releases/2009-11/niu-ncm112009.php


(2) If Earth has rings. 有趣短片"地球的光環"。
http://www.youtube.com/v/UT2sQ7KIQ-E


Credit: NASA/JPL-Caltech/JHUAPL
(3) The Bubble of Our Solar System. 太陽系泡泡。
http://photojournal.jpl.nasa.gov/catalog/PIA12310


香港天文學會
月球行星組