Dan Adamo returned to the program for his Part 2 discussion on "interplanetary Synodic-Resonant Waypoints" for Earth-Mars spaceflight. Follow the discussion with his PDF document which has been uploaded to his first appearance dated May 18, 2025. This second appearance has that link in the blog for the current show. We started Part 2 with a short review of Slide 5 and then proceeded to discuss and review the additional slides in his presentation. Note that this is a somewhat technical discussion and you do need to follow along with his PDF presentation. Rather than review each and every slide as Dan talked about, this summary will focus on the larger picture and that is the purpose or reason behind Dan doing this work which is even as he said many times "very speculative." As I understand it, Dan believes the Earth-Mars waypoints may in the future play an important role in Earth-Mars and return transportation, both human spaceflight and cargo. However, waypoint discussions are not yet being talked about or made part of potential mission planning. Dan is attempting to be "evangelical" in the waypoint discussion to get them into our awareness to start playing a role in the discussions that will influence these future missions. Our guest believes that waypoints are going to be very important in the future but they need to be talked about and evaluated early on to be refined for mission planning. He is hoping and he is optimistic that by bringing waypoints into space travel awareness, additional presentations and evaluations will be offered in the coming years so that they do become part of the future Earth-Mars mission planning and possibly even the missions. Dan is looking for feedback from listeners on waypoints and his presentation. After you have heard his presentation from both Part 1 and Part 2, he wants you to email him with your thoughts or post your thoughts on our blog or Substack as he is monitoring both. His email address is in the bottom footer of each of his slides. If you do direct email Dan, please copy me on the note as I would like to stay in the loop on this subject. Email me at [email protected]. Dan and I thank you for listening and we look forward to your feedback.