At Spacefest VI With Apollo Astronaut Gene Cernan and a Host of Proud Space Geeks

Episode Summary

Executive Summary: This Planetary Radio episode from SpaceFest VI blends celebration of the space community with updates on planetary science, NASA policy, and exploration plans. Emily Lakdawalla highlights new Earth and Mars imagery, Bill Nye backs NASA’s asteroid redirect mission only with strict cost oversight, and Mark Raymond and Dan Durda discuss Dawn, Ceres, and commercial suborbital research. Gene Cernan and Laura Danley close with a moving reflection on Apollo, education, and inspiration.

Main Topics: SpaceFest VI and the space community: The show spotlights SpaceFest in Pasadena as a gathering of astronauts, scientists, artists, vendors, and fans, emphasizing the communal culture of space exploration and the joy of meeting heroes and colleagues in person. Earth and Mars imagery from orbit: Emily Lakdawalla discusses the High Definition Earth Viewing Experiment on the ISS and new Mars blog imagery that combines multiple spacecraft datasets to create color views of Gale Crater and Curiosity at Kimberley. Bill Nye on NASA’s asteroid redirect mission: Bill Nye expresses conditional support for NASA’s asteroid retrieval mission, arguing that it must be backed by a full independent cost assessment and technical evaluation to avoid overruns that could damage the rest of NASA’s portfolio. Dawn mission and the mystery of Ceres: Mark Raymond updates listeners on Dawn’s progress toward Ceres, expected orbital insertion in 2015, and the scientific intrigue surrounding water vapor observed around the dwarf planet. Art, science, and suborbital research: Dan Durda explains how space art, planetary science, and upcoming flights on commercial suborbital vehicles intersect, promising affordable microgravity access for experiments and hands-on scientist participation. Apollo legacy, inspiration, and education: Gene Cernan and Laura Danley reflect on Apollo’s transformative effect, the power of dreams, and the need to make STEM more engaging by linking it with art, philosophy, and human aspiration. Skywatching and trivia in What's Up: Bruce Betts recaps the failed meteor shower, gives a practical sky guide for visible planets, and poses a trivia contest about spacecraft that flew over the sun’s poles.

Key Arguments: The asteroid redirect mission deserves support only if NASA fully estimates its cost and independently evaluates its technical risks, because underestimation could create a major budget crisis. The Space Launch System should not be used for a single flagship mission; broadening its use to outer planets and Europa would help justify and reduce its cost. Mars imagery becomes much more scientifically and visually useful when high-resolution monochrome data are combined with lower-resolution color context from other orbiters. Dawn’s approach to Ceres is scientifically timely because previous observations of water vapor suggest unresolved processes like sublimation or cryovolcanism that the spacecraft can help explain. SpaceFest works because it brings together astronauts, scientists, artists, and fans in one place, creating a shared sense of community and inspiration. Commercial suborbital vehicles could democratize microgravity research, giving scientists cheaper, more frequent access to space than the ISS allows. Apollo’s greatest legacy may be inspirational: it can motivate young people to pursue science, engineering, and other ambitious goals by making learning feel human and exciting.

Data Points: SpaceFest edition: VI - The event discussed was the sixth SpaceFest in Pasadena. First SpaceFest in Southern California: first time - Kim and Sally Poor brought the annual celebration to Southern California for the first time. ISS Earth-view cameras: 4 - The High-Definition Earth Viewing Experiment uses four HD cameras on the outside of the space station. People watching a gray screen: 3,600 - Emily noted thousands were still watching even when the Earth-view feed was temporarily dark. Dawn arrival at Ceres: late March or early April 2015 - Mark Raymond gave the projected orbital insertion window. Dawn first pictures of Ceres: February 2015 - Mark said imaging would begin before orbit insertion. Time until Dawn reaches Ceres: less than a year - Relative timing from the interview date. Apollo astronauts at SpaceFest: many / all here at the same time - The show describes multiple Apollo astronauts attending together. Number of moonwalkers on one hat: at least 2 - The Space Cowboy said each hat must have at least two moonwalkers to activate it. Apollo astronaut who became a U.S. Senator: Harrison Schmitt - Bruce’s trivia answer identified Schmitt as the Apollo astronaut who later became a senator. Surface gravity on the Sun: 28G - Bruce answered the sky trivia question about the Sun’s gravity. Meteor shower outcome: really lame - Bruce characterized the shower as a bust after previous caution that it could be disappointing.

Pivotal Quotes: "we strongly support it as long as its cost is fully estimated" — Bill Nye: Bill Nye’s conditional endorsement of NASA’s asteroid redirect mission "these are my people" — Mark Raymond: Mark Raymond explaining why he loves attending SpaceFest "The dreamers of the day are the doers of tomorrow" — Gene Cernan: Cernan reflecting on how Apollo inspired education and achievement

Implications: The episode frames space exploration as both a technical enterprise and a cultural movement: missions need disciplined budgeting, but they also depend on inspiration, public enthusiasm, and broad participation through science, art, and commercial access to space.