Hagal dune field
... that the dunes of the Hagal dune field on Mars look like dots and dashes, and are called the "Martian Morse Code"?
... that the dunes of the <b id="mwA6Y"><a href="./Hagal_dune_field" id="mwA6c" rel="mw:WikiLink" title="Hagal dune field">Hagal dune field</a></b> on <a href="./Mars" id="mwA6g" rel="mw:WikiLink" title="Mars">Mars</a><i id="mwA6k"> (detail pictured)</i> look like dots and dashes, and are called the "Martian Morse Code"?