[ad_1] <br><br>A 300-foot-tall anomaly on one of Mars' moons has intrigued observers for years. <br>[ad_2] <br> <br> <br> <br><a href="https://www.newsnationnow.com/podcasts-newsnation/mars-moon-monolith-mystery/" style="font-size: 12px;color:#D5DBDB">Source link </a>