According to the research of John Brandenburg, guest on the 7/27/15 show, there is evidence of massive nuclear explosions in Mars' distant past. This graphic shows the areas where he believes they occurred. For more, see Brandenburg's full paper, as well as this viewgraph presentation.
Mark Anthony, the "Psychic Lawyer," discussed haunted real estate, including the infamous Lizzie Borden murder house, as well as communicating with the spirits of ancestors. Open Lines followed in the latter half of the show.