Aeolian Mars . ... Credit Copyright: Malin Space Science Systems , MGS , JPL , NASA Explanation: Mars' atmosphere is relatively thin, still when martian winds blow they weather and shape its surface . Like familiar aeolian features on Earth , this field of dunes within Mars' Rabe crater exhibits graceful undulating ridges which can shift as windblown material is deposited on the dunes' windward face and falls away down the steeper leeward slopes. ... NASA Official: Jay Norris. ...