Pluto and Titan and Iran, Oh My!

Episode Summary

Executive Summary: This Planetary Radio episode blends policy, mission planning, and field science. Bill Nye offers a post-election outlook optimistic about U.S. space exploration, while scientists at the DPS/EPSC meeting discuss Pluto, Titan, Rosetta, and an unexpected geologic expedition to Iran to study Mars/Titan analogs. Bruce Betts closes with skywatching and a Titan-themed contest.

Main Topics: Post-election U.S. space policy outlook: Bill Nye argues the incoming Trump administration is likely to support space exploration, commercial development, and human spaceflight, which could benefit planetary science and missions to Europa, Titan, and Enceladus. DPS/EPSC meeting highlights: Pluto and Rosetta: Researchers Rosalie Lopez and Mike Malaska discuss major results from the joint planetary science meeting, especially exciting Pluto features and Rosetta’s close-up comet science. Titan as a dynamic ocean world: Lopez and Malaska explain why Titan remains a high-priority target: active weather, dunes, rivers, liquid-filled canyons, possible cryovolcanism, and a subsurface ocean make it a prime candidate for future missions. Iran field geology as an analog for Titan and Mars: Janie Radabaugh and Sana Hosseini describe a reconnaissance science trip to Iran’s Lut Desert to study yardangs and wind-carved landscapes analogous to Mars and Titan, while also reflecting on Iran’s scientific culture and challenges. Public outreach, imaging, and mission prep: Emily Lakdawalla discusses a striking Jupiter animation by amateur astrophotographer Damien Peach and her role in writing about the Mastcam-Z camera’s path to Mars, highlighting the link between outreach and mission development. Skywatching and celestial trivia: Bruce Betts covers current planet visibility, the near-supermoon, Apollo 12 history, and a Lord of the Rings-themed Titan naming contest, keeping the episode light and accessible.

Key Arguments: Space policy after the election is likely to remain favorable to NASA, human spaceflight, and commercial space development, which Nye says can stimulate jobs and enable deeper planetary exploration. Titan deserves multiple future missions because it combines Earth-like geology with exotic chemistry, active liquids, and a likely subsurface ocean, making it scientifically rich and potentially unique. Pluto continues to surprise scientists with possible cryovolcanic features and other complex geology, reinforcing New Horizons’ importance and the value of continued outer solar system exploration. Field studies in Iran’s Lut Desert can improve understanding of wind-carved landforms on Mars and Titan, showing that terrestrial analogs remain essential for planetary science. Iran has strong public respect for astronomy and science, but scientific progress is constrained by war, sanctions, infrastructure gaps, and brain drain. Amateur astrophotographers can produce scientifically and aesthetically valuable planetary images that complement professional observations and public outreach.

Data Points: Meeting size: 48th gathering of the American Astronomical Society Division for Planetary Sciences and 11th meeting of the European Planetary Science Congress - The episode’s field interviews were recorded at the joint 2016 meeting in Pasadena. Location temperature: Above 130 degrees Fahrenheit - Radabaugh described Iran’s Lut Desert as the hottest desert on Earth with extreme temperatures. Yardang field size: Over 100 kilometers long and 50 kilometers wide - Radabaugh described the scale of the wind-carved ridges studied in Iran. Moon proximity: Closest full moon since 1948 - Bruce Betts explained that the November 14, 2016 full moon was exceptionally near perigee. Supermoon brightness change: About 1.3% brighter than the previous full moon - Betts compared the supermoon to the prior month’s full moon. Supermoon size change vs apogee: About 14% bigger in diameter and about 30% brighter - Betts explained the perceptible difference between perigee and apogee full moons. Apollo anniversary: 1969 - Betts noted Apollo 12 as the week’s space history item. Mission destination: Titan - The contest answer was Gandalf Collis on Saturn’s moon Titan. Contest prize account: 200-point iTelescope.net astronomy account - Prize package for the contest winner. Contest deadline: 8 a.m. Tuesday, November 22 - Deadline given for contest submissions.

Pivotal Quotes: "Pluto just keeps being more and more exciting." — Rosalie Lopez: She reacted to new Pluto results presented at the DPS plenary session. "Titan is really weird." — Rosalie Lopez: She was describing Titan’s Earth-like geology paired with methane liquids and extreme cold. "I think the two of you need to come out with a bumper sticker pushing a Titan mission." — Matt Kaplan: Kaplan encouraged the scientists after they argued for a comprehensive Titan mission.

Implications: The episode underscores growing momentum for ambitious outer solar system missions and shows how planetary science depends on policy, analog fieldwork, and public engagement. Titan emerges as a top target, while outreach and amateur contributions remain vital.