<a href="https://en.wikipedia.org/wiki/Mare_Undarum" class="extiw" title="en:Mare Undarum">Mare Undarum</a> (in the center and right) and <a href="https://en.wikipedia.org/wiki/Mare_Spumans" class="extiw" title="en:Mare Spumans">Mare Spumans</a> (in the upper right, smaller) on the Moon.  Condorcet P crater is in center foreground.  Oblique <a href="https://en.wikipedia.org/wiki/Apollo_17" class="extiw" title="en:Apollo 17">Apollo 17</a> Mapping camera image, looking south.
NASA
<p>The original image is in the public domain because it is a work of the U.S. Government (<a href="https://en.wikipedia.org/wiki/NASA" class="extiw" title="en:NASA">NASA</a>).<br></p>
<b>Immediate source</b>: Lunar and Planetary Institute, Apollo Image Atlas<br>Mapping Camera Image Catalog, Apollo 17, <a rel="nofollow" class="external text" href="http://www.lpi.usra.edu/resources/apollo/frame/?AS17-M-1626">AS17-M-1626</a>