The Lightning-Scarred Planet Marshttps://www.youtube.com/watch?v=tRV1e5_tB6Y&feature=player_embedded
Few planets have been the subject of more intense study than Mars. In spite of these efforts, there is much about our planetary neighbor that remains elusive to us. How, for instance, can we logically account for the volume and depth of various craters and ridges that scar the surface of Mars? So begins the journey of The Lightning-Scarred Planet Mars (second episode from the Symbols of an Alien Sky), a riveting dissection of each prominent formation present on the planet's surface, and theories which propose answers for how they originated.