ScienceActually<p>Gravity is slightly stronger in the Moon's maria (the dark, flat plains formed by ancient volcanic activity) than in other regions of the lunar surface. This phenomenon occurs because the maria are associated with mass concentrations, or mascons—large, dense deposits of basaltic lava that filled ancient impact basins.</p><p><a href="https://sfba.social/tags/science" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>science</span></a> <a href="https://sfba.social/tags/sciencefacts" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>sciencefacts</span></a> <a href="https://sfba.social/tags/moon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>moon</span></a> <a href="https://sfba.social/tags/maria" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>maria</span></a> <a href="https://sfba.social/tags/lunarmaria" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>lunarmaria</span></a> <a href="https://sfba.social/tags/gravity" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>gravity</span></a> <a href="https://sfba.social/tags/mascons" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>mascons</span></a> <a href="https://sfba.social/tags/massconcentration" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>massconcentration</span></a></p>