Author and Four-Time Shuttle Astronaut Tom Jones

Episode Summary

Executive Summary: Planetary Radio centers on shuttle astronaut Tom Jones’ reflections on Discovery’s return-to-flight mission, his four shuttle flights, and his NASA guidebook and upcoming memoir. The conversation blends astronaut memoir, shuttle history, spacewalk experience, NASA’s future from shuttle to Moon/Mars/asteroids, and practical planetary defense science, capped by Bruce Betts’ skywatching update and trivia.

Main Topics: Shuttle return to flight and Discovery mission: The show opens with NASA’s post-Columbia shuttle comeback, emphasizing that Discovery’s mission succeeded technically and operationally beyond the minor tile issue and was nearing a safe landing. Tom Jones’ astronaut career and shuttle experience: Jones discusses his background as a planetary scientist and astronaut, describing four shuttle missions, 53 days in space, and three spacewalks, including work on the International Space Station. The Complete Idiot’s Guide to NASA: Jones explains the intent of his coauthored book: a breezy, accessible overview of NASA’s history, human spaceflight, and the astronaut experience, enriched by insider stories and sidebars. NASA’s future: Moon, asteroids, Mars: The discussion turns to the post-shuttle trajectory, with Jones arguing for a staged human exploration strategy that includes the Moon, then near-Earth asteroids as a practical stepping stone to Mars. Planetary defense and comet/asteroid deflection: Emily Lochdawala explains that Deep Impact did not measurably alter Tempel 1’s orbit and outlines that future defense would rely on early detection and slow deflection rather than nuclear disruption. Night sky update and Planetary Society segment: Bruce Betts provides observing tips for the Perseid meteor shower, mentions Venus-Jupiter proximity, Mars rising, and notes Venus science and Enceladus discoveries, plus trivia and a naming contest.

Key Arguments: Discovery’s return-to-flight was not merely a repair mission; it demonstrated that shuttle systems and objectives were broadly successful and that NASA was regaining operational confidence. Jones’ four shuttle flights were unusually frequent because he flew during the shuttle program’s peak years, giving him exceptional access to orbit and station assembly work. Remote sensing skills from planetary science translated directly to Earth observation on the Space Radar Laboratory missions, showing the value of scientific training in human spaceflight. Spacewalks are safer and more mature than in the Gemini era, but remain a major physical and mental challenge requiring strict procedural discipline. NASA’s long-term human exploration strategy should not stop at the Moon; near-Earth asteroids offer a more realistic intermediate destination before Mars, especially because of resource potential such as water. For impact hazards, the best defense is early detection plus gradual orbital nudging over years, not trying to explode a potentially rubble-pile object with a nuclear weapon. Human and robotic exploration are complementary: robots have excelled at Mars and small bodies, while humans add adaptability and judgment to field science and construction. The post-shuttle era matters because it determines whether NASA can credibly lead future crewed missions beyond low Earth orbit.

Data Points: Shuttle flight experience: 4 missions - Tom Jones’ NASA career as described in the interview Time in space: 53 days - Jones’ cumulative spaceflight time on the shuttle Spacewalks: 3 spacewalks - Performed on his last mission to the International Space Station Return-to-flight target: 2 landing sites - Discovery had landing opportunities at Kennedy Space Center and Edwards Air Force Base Tempel 1 orbital change: 10 meters - Deep Impact altered the comet’s orbit by only this amount, undetectable from Earth Tempel 1 orbital period change: fraction of a second - Deep Impact changed the comet’s year-and-a-half? no—its 5.5-year orbit timing by an imperceptible amount Tempel 1 orbit period: 5.5 years - Comet’s time to complete one orbit around the Sun Closest solar distance mentioned: 220 million kilometers - Tempel 1’s usual closest approach to the Sun in the discussion Space shuttle mission duration: 11 days - Jones’ Space Radar Laboratory missions on orbit Orbital altitude: about 110 miles - Low altitude of his Earth-observing shuttle flights Asteroid mission duration estimate: six months round trip - Jones’ suggested near-Earth asteroid mission profile Shuttle era timing: 1990s to 2001 - The period when Jones flew and the shuttle program was at its peak Post-Columbia program horizon: around 2010 - Projected end of shuttle missions after station construction Book publication date: February 2006 - Expected release for Skywalking Perseid peak date: August 12 - Bruce Betts’ skywatching guidance Trivia answer: Vesta - Identified as the third largest asteroid

Pivotal Quotes: "It looks like this big patient is cured." — Astronaut Stephen Robinson: Describing easy removal of filler material during Discovery’s tile inspection "the first shuttle in two and a half years circled the Earth" — Matt Kaplan: Framing Discovery’s return-to-flight mission after the Columbia accident "the great compromise stepping stone, and it's an advantageous avenue to pursue, is to reach out a few million miles to the near-Earth asteroids" — Tom Jones: Jones argues for asteroids as the logical intermediate human exploration target

Implications: The episode frames shuttle return as a credibility test for NASA and argues future exploration should be incremental: shuttle to station, then Moon/asteroids, then Mars. It also reinforces that planetary defense will depend on early warning and controlled deflection, not dramatic destruction.