NASA @NASA
š A dynamic world of dunes, plains, craters & terrains is revealed in this first-ever geologic map of Saturn's moon, Titan. Lakes and seas are marked blue, but they aren't water! What rains down is methane and ethane in Titan's frigid climate. Zoom in: https://t.co/ufdpxYNEqP https://t.co/lNoA7lkhjo — PolitiTweet.org