火星の水で削られた渓谷痕
Originally shared by NASA
Observing images of craters on Mars provides scientists insight into the water that carved them & the planet's history of water activity. What do you think this tadpole-shaped impact crater says about the water that used to fill it? Find out here: http://go.nasa.gov/2Eojfjc
蔵王のお釜!!!ヽ(=´▽`=)ﾉ
返信削除