Planetary news,12-2／行星新資訊12-2

CKYan

Credit: NASA/JPL/University of Arizona/Caltech
(1) Ancient Climate Cycles Recorded in Mars Rocks.
    火星石塊記錄了週期性氣象變化．
http://mr.caltech.edu/media/Press_Releases/PR13214.html


Credit: ESA
(2) Important role of groundwater springs in shaping Mars.
    水與火星地貌塑造．
http://www.esa.int/esaSC/SEMJDBSTGOF_index_0.html

香港天文學會
月球行星組